Sepai Booster+ Recovery
A serum with 62 ingredients, including niacinamide, vitamin E, and hyaluronic acid.
Overview
What it is
Serum with 62 ingredients that contains hyaluronic acid, niacinamide, peptides, Vitamin E and zinc
Cool Features
It is vegan, cruelty-free, and reef safe
Suited For
It has ingredients that are good for fighting acne, anti aging, dry skin, brightening skin, sensitive skin, oily skin, reducing pores, scar healing, dark spots and better texture
Free From
It doesn't contain any parabens, silicones or sulfates
Fun facts
Sepai is from Spain.
We independently verify ingredients and our claims are backed by peer-reviewed research. Does this product need an update? Let us know.
What's inside
Ingredients List
Water
Skin ConditioningSqualane
EmollientAloe Barbadensis Leaf Juice
Skin ConditioningSalvia Hispanica Seed Oil
EmollientOryza Sativa Bran Oil
EmollientGlycerin
HumectantThermus Thermophillus Ferment
Skin ConditioningCandida Bombicola/Glucose/Methyl Rapeseedate Ferment
AntimicrobialOlea Europaea Fruit Oil
MaskingTuber Magnatum Extract
Skin ConditioningAdenosine
Skin ConditioningPalmitoyl Tripeptide-8
Skin ConditioningMarrubium Vulgare Extract
Skin ConditioningNiacinamide
SmoothingAcacia Senegal Gum
MaskingSerine
MaskingHydrolyzed Candida Saitoana Extract
Skin ProtectingDecarboxy Carnosine Hcl
Skin ConditioningTapioca Starch
Lactobacillus/Soybean Ferment Extract
Skin ConditioningUndaria Pinnatifida Extract
Skin ConditioningSaccharide Isomerate
HumectantCrocus Sativus Flower Extract
MaskingImperata Cylindrica Root Extract
Skin ConditioningViscum Album Leaf Extract
SoothingCentella Asiatica Extract
CleansingYeast Extract
Skin ConditioningVaccinium Vitis-Idaea Fruit Extract
AntioxidantSodium Hyaluronate
HumectantTriticum Vulgare Germ Extract
Skin ConditioningZinc Gluconate
Skin ConditioningGinkgo Biloba Leaf Extract
Skin ConditioningMagnesium Aspartate
Skin ConditioningOryza Sativa Extract
AbsorbentCitrus Aurantium Dulcis Fruit Extract
MaskingPanax Ginseng Root Extract
EmollientCitrus Nobilis Fruit Extract
MaskingCopper Gluconate
Skin ConditioningCitrus Aurantium Bergamia Fruit Extract
Skin ConditioningCitrus Grandis Fruit Extract
AstringentBeta-Carotene
Skin ConditioningTocopherol
AntioxidantZea Mays Oil
EmulsifyingGlycine Soja Oil
EmollientXanthan Gum
EmulsifyingDextran
Carbomer
Emulsion StabilisingPotassium Sorbate
PreservativeSodium Benzoate
MaskingSodium Hydroxide
BufferingCitric Acid
BufferingDehydroacetic Acid
PreservativeBenzoic Acid
MaskingSorbic Acid
PreservativePropanediol
Solvent1,2-Hexanediol
Skin ConditioningBenzyl Alcohol
PerfumingPhenethyl Alcohol
MaskingButylene Glycol
HumectantPentylene Glycol
Skin ConditioningCaprylyl Glycol
EmollientParfum
MaskingWater, Squalane, Aloe Barbadensis Leaf Juice, Salvia Hispanica Seed Oil, Oryza Sativa Bran Oil, Glycerin, Thermus Thermophillus Ferment, Candida Bombicola/Glucose/Methyl Rapeseedate Ferment, Olea Europaea Fruit Oil, Tuber Magnatum Extract, Adenosine, Palmitoyl Tripeptide-8, Marrubium Vulgare Extract, Niacinamide, Acacia Senegal Gum, Serine, Hydrolyzed Candida Saitoana Extract, Decarboxy Carnosine Hcl, Tapioca Starch, Lactobacillus/Soybean Ferment Extract, Undaria Pinnatifida Extract, Saccharide Isomerate, Crocus Sativus Flower Extract, Imperata Cylindrica Root Extract, Viscum Album Leaf Extract, Centella Asiatica Extract, Yeast Extract, Vaccinium Vitis-Idaea Fruit Extract, Sodium Hyaluronate, Triticum Vulgare Germ Extract, Zinc Gluconate, Ginkgo Biloba Leaf Extract, Magnesium Aspartate, Oryza Sativa Extract, Citrus Aurantium Dulcis Fruit Extract, Panax Ginseng Root Extract, Citrus Nobilis Fruit Extract, Copper Gluconate, Citrus Aurantium Bergamia Fruit Extract, Citrus Grandis Fruit Extract, Beta-Carotene, Tocopherol, Zea Mays Oil, Glycine Soja Oil, Xanthan Gum, Dextran, Carbomer, Potassium Sorbate, Sodium Benzoate, Sodium Hydroxide, Citric Acid, Dehydroacetic Acid, Benzoic Acid, Sorbic Acid, Propanediol, 1,2-Hexanediol, Benzyl Alcohol, Phenethyl Alcohol, Butylene Glycol, Pentylene Glycol, Caprylyl Glycol, Parfum
Key Ingredients
Benefits
Concerns
Ingredients Explained
Water. It's the most common cosmetic ingredient of all. You'll usually see it at the top of ingredient lists, meaning that it makes up the largest part of the product.
So why is it so popular? Water most often acts as a solvent - this means that it helps dissolve other ingredients into the formulation.
You'll also recognize water as that liquid we all need to stay alive. If you see this, drink a glass of water. Remember to stay hydrated!
Learn more about WaterSqualane is the hydrogenated and shelf-stable form of squalene (a lipid that naturally occurs in human sebum).
It is an emollient and skin conditioning agent that is able to integrate seamlessly into the skin's lipid barrier without clogging pores.
This is due to how structurally similar it is to what your skin already produces.
Though it is mostly an emollient that helps soften and hydrate skin, it also has some humectant and occlusive action. Humectants help the skin retain moisture while occlusives seal it in, making squalane a triple-threat moisturizer.
Research shows it has antioxidant capabilities that help protect against stressors like UV exposure, specifically UVA induced oxidative stress. This study also found that it supports collagen biosynthesis in human dermal fibroblasts.
No clinical study has reported significant adverse effects and irritation reactions are very rare from this ingredient (even at 100% concentration).
Overall, it's a fantastic ingredient for hydration and is suitable for all skin types.
This depends on the source. Squalane can be derived from both plants and animals. Most squalane used in skincare comes from plants.
Please note: the source of squalane is only known if disclosed by the brand. We recommend reaching out to the brand if you have any questions about their squalane.
Read more about squalene with an "e".
Though squalane is often called an oil, itās technically not one. It is a hydrocarbon, meaning it is only made of carbon and hydrogen. True oils are triglycerides and made of fatty acids and glycerol.
The term āoil-freeā isnāt regulated so companies can define it however they want. Some exclude all oils, while others just avoid mineral oil or comedogenic oils.
Squalane has a comedogenic rating of 1 from the original 1972 study that tested raw ingredients under occlusion on rabbit ears. This system is not standardized or peer-reviewed, and using the raw ingredients is very different from how diluted cosmetic formulations are used on human skin.
A comedogenic rating of 1 means it is "unlikely to clog pores" according to the original rating system.
The overall formula of a product matters more than the individual ingredients on whether or not it will cause clogged pores.
Learn more about SqualaneAloe Barbadensis Leaf Juice comes from leaves of the aloe plant. Aloe Barbadensis Leaf Juice is best known for helping to soothe sunburns. It is also anti-inflammatory, moisturizing, antiseptic, and can help heal wounds.
Aloe is packed with good stuff including Vitamins A, C, and E. These vitamins are antioxidants, which help fight free-radicals and the damage they may cause. Free-radicals are molecules that may damage your skin cells, such as pollution.
Aloe Barbadensis Leaf Juice also contains sugars. These sugars come in the form of monosaccharides and polysaccharides, folic acid, and choline. These sugars are able to help bind moisture to skin.
It also contains minerals such as calcium, 12 anthraquinones, fatty acids, amino acids, and Vitamin B12.
Learn more about Aloe Barbadensis Leaf JuiceThis ingredient is also known as Chia Seed Oil. It is rich in fatty acids, especially linolenic acid and linoleic acid.
Research shows topical application of chia seed oil improves skin hydration and barrier function. In vitro studies show the chia seed oil especially rich in linolenic acid can increase the skin's natural ability to hydrate and even boost natural hyaluronic acid.
Due to its fatty acid content, this ingredient may not be Malassezia folliculitis safe.
Learn more about Salvia Hispanica Seed OilThis oil comes from the outer layer (bran) of rice grains. It is packed with skin-friendly fatty acids to soften and condition the skin while supporting your moisture barrier.
What makes it stand out from other plant oils is its naturally high concentration of gamma-oryzanol, a potent antioxidant. This antioxidant has shown some UV-absorptive properties in research.
Other antioxidants found in this oil include tocopherols, tocotrienols, and ferulic acid.
According to manufacturers, this oil has a lightweight texture that absorbs nicely.
The CIR (Cosmetic Ingredient Review) has concluded this ingredient to be safe as used in cosmetics and it has not shown to be a skin sensitizer in testing (unless you have a known rice allergy).
Due to the fatty acids (primarily Oleic Acid ~40%, Linoleic Acid ~30%, and some Palmitic Acid), this ingredient may not be fungal acne safe.
In vitro studies have shown that Oleic Acid is one of the fatty acids that induce rapid Malassezia growth in lab settings.
Learn more about Oryza Sativa Bran OilGlycerin (or glycerol) is a compound naturally found in your skin. It's a powerhouse humectant that pulls water into the stratum corneum.
Topically, glycerin does several things at once:
Your skin makes glycerin on its own (mostly from sebaceous oil breakdown) and shuttles it to your outermost layer of skin, or your epidermis, via aquaporin-3.
Aquaporin-3 is a transporter that is essential for normal skin hydration, elasticity, and repair. Interestingly, mice lacking in AQP3 have dry and less elastic skin that can be fully corrected with glycerin.
This ingredient is non-irritating, plays well with almost every ingredient, and works across all skin types. Typical use is anywhere between 3-10% but can go up to 79% in some leave-on products.
Just know very high concentrations (>40%) can feel tacky in low humidity.
Glycerin is the name for this ingredient in American English. British English uses Glycerol/Glycerine.
Learn more about GlycerinWe don't have a description for Thermus Thermophillus Ferment yet.
This ingredient is a biosurfactant ferment made when the yeast Candida bombicola ferments glucose plus methyl rapeseedate. This kind of ferment is best known for producing sophorolipids (a family of glycolipid biosurfactants) which brands use as mild cleansing agents.
What it does;
Lab work on purified acidic sophorolipids suggests they can be less cytotoxic/irritating in skin-model testing than a common harsh surfactant (SLES) at the tested conditions.
By the way, the final cosmetic ingredient does not contain live yeast. Itās a processed fermentation-derived ingredient.
Learn more about Candida Bombicola/Glucose/Methyl Rapeseedate FermentThis ingredient is also known as olive oil. It has been used in skincare for centuries and science largely backs up its reputation as a nourishing emollient.
The main components of olive oil are oleic acid (55-83%), linoleic acid (3.5-20%), and palmitic acid (7-20%). Oleic acid promotes skin regeneration and helps regulate inflammatory responses.
Squalene is also naturally present in olive oil and exhibits moisturizing and antioxidant properties.
The polyphenols in olive oil also show anti-aging promise; one clinical study found a measurable improvement in skin appearance after 30 days of topical serum use.
Just be aware that applying olive oil directly to skin can weaken the barrier and cause redness. One study with volunteers found even people without sensitive skin experienced a significant reduction in stratum corneum integrity and induced mild erythema.
It's best to use this ingredient as part of a carefully crafted formula (instead of putting it on skin directly from the bottle).
Because it has a 2-3 on the comedogenic scale, it is a moderate risk for acne-prone skin. However, the overall formulation of a product matters more than a few ingredients with comedogenic ratings.
This ingredient may not be fungal acne safe because of the oleic and palmitic acid content. These fall within the C11-24 fatty acid range that the Malassezia yeast can metabolize to grow.
Overall, olive oil is a well-studied and nourishing skincare ingredient.
Learn more about Olea Europaea Fruit OilWe don't have a description for Tuber Magnatum Extract yet.
Adenosine is in every living organism. It is one of four components in nucleic acids that helps store our DNA.
Adenosine has many benefits when used. These benefits include hydrating the skin, smoothing skin, and reducing wrinkles. Once applied, adenosine increases collagen production. It also helps with improving firmness and tissue repair.
Studies have found adenosine may also help with wound healing.
In skincare products, Adenosine is usually derived from yeast.
Learn more about AdenosineThis synthetic peptide is created from palmitic acid, arginine, histidine, and phenylalanine.
According to the manufacturer, this peptide is great at soothing skin inflammation.
We don't have a description for Marrubium Vulgare Extract yet.
Niacinamide is a multitasking form of vitamin B3 that strengthens the skin barrier, reduces pores and dark spots, regulates oil, and improves signs of aging.
And the best part? It's gentle and well-tolerated by most skin types, including sensitive and reactive skin.
You might have heard of "niacin flush", or the reddening of skin that causes itchiness. Niacinamide has not been found to cause this.
In very rare cases, some individuals may not be able to tolerate niacinamide at all or experience an allergic reaction to it.
If you are experiencing flaking, irritation, and dryness with this ingredient, be sure to double check all your products as this ingredient can be found in all categories of skincare.
When incorporating niacinamide into your routine, look out for concentration amounts. Typically, 5% niacinamide provides benefits such as fading dark spots. However, if you have sensitive skin, it is better to begin with a smaller concentration.
When you apply niacinamide to your skin, your body converts it into nicotinamide adenine dinucleotide (NAD). NAD is an essential coenzyme that is already found in your cells as "fuel" and powers countless biological processes.
In your skin, NAD helps repair cell damage, produce new healthy cells, support collagen production, strengthen the skin barrier, and fight environmental stressors (like UV and pollution).
Our natural NAD levels start to decline with age, leading to slower skin repair, visible aging, and a weaker skin barrier. By providing your skin niacinamide, you're recharging your skin's NAD levels. This leads to stronger, healthier, and younger looking skin.
Another name for vitamin B3 is nicotinamide. This vitamin is water-soluble and our bodies don't store it. We obtain Vitamin B3 from either food or skincare. Meat, fish, wheat, yeast, and leafy greens contain vitamin B3.
The type of niacinamide used in skincare is synthetically created.
Learn more about NiacinamideAcacia Senegal Gum has skin soothing, thickening, and formulation stabilizing properties. It comes from the Acacia tree that is native to sub-Saharan Africa.
Serine is a non-essential amino acid (your body makes it on its own!). It is a major player in your skin's natural moisturizing factor (NMF), or the water-loving molecules in your outermost layer of skin (stratum corneum) that keeps everything hydrated and happy.
Serine is one of your NMF's most abundant components that works as a skin-identical humectant. Its hydroxyl group grabs onto water molecules to boost hydration without any heaviness or occlusion.
Research on a hydrogel with serine confirmed this serine got delivered to your stratum corneum and demonstrated enhanced skin moisturization.
Interestingly serine also helps your skin produce filaggrin, a protein that keeps your skin barrier strong and used to create collagen.
Learn more about SerineWe don't have a description for Hydrolyzed Candida Saitoana Extract yet.
We don't have a description for Decarboxy Carnosine Hcl yet.
Tapioca starch is a thickening agent and is made from the cassava root, also known as yucca.
According to a manufacturer, it is an excellent talc replacement.
It is gluten-free.
Learn more about Tapioca StarchThis ingredient is created by fermenting soybean extract with the bacteria, lactobacillus.
Some studies have shown it to have antioxidant properties. One study found this ingredient to have stronger properties than non-fermented soybean extract.
Another study found in increase of isoflavones, amino acids, and peptides in fermented soy milk.
Learn more about Lactobacillus/Soybean Ferment ExtractUndaria Pinnatifida Extract comes from a kelp native to the northern Pacific Ocean. It is more commonly known as "wakame".
This kelp contains fatty acids, sodium, calcium, iodine, thiamine, and niacin. Studies show a polysaccharide known as fucoidan exhibits strong antioxidant activities. Fucoidan can be found in the cell walls of many species of brown seaweed.
Wakame prefers cold and temperate oceans. It is used in Japanese and Korean cuisine (yummy!).
Learn more about Undaria Pinnatifida ExtractSaccharide Isomerate comes from sugars found in corn. It is a skin hydrator.
The structure of this ingredient can be altered to be more similar to the carbohydrates found in our skin. This ability to mimic our skin gives it hydrating properties.
Specifically, saccharide Isomerate is a humectant. Humectants draw moisture from the air to our skin.
Research shows Saccharide Isomerate to be an effective moisturizer.
Learn more about Saccharide IsomerateWe don't have a description for Crocus Sativus Flower Extract yet.
We don't have a description for Imperata Cylindrica Root Extract yet.
We don't have a description for Viscum Album Leaf Extract yet.
Centella Asiatica Extract (Centella) is derived from an herb native to Southeast Asia. It is famous for its anti-inflammatory and soothing properties.
Centella is rich in antioxidants and amino acids, such as Madecassic Acid and Asiaticoside.
Studies show the compounds in centella help with:
The combination of all these properties makes centella effective at soothing, hydrating, and protecting the skin.
Other great components of centella include Vitamin A, vitamin C, several B vitamins, and Asiatic Acid.
Fun fact: Centella has been used as a medicine and in food for many centuries. As a medicine, it is used to treat burns, scratches, and wounds.
Learn more about Centella Asiatica ExtractYeast extract is a silky, clear liquid derived from yeast (usually Saccharomyces cerevisiae or Torula yeast).
This ingredient has plenty of skin benefits:
Bioferments of yeast and soy have been found to reduce hyperpigmentation at low levels.
Yeast extract is fungal acne safe because it's made up of amino acids, peptides, B vitamins, and nucleotides (not the C11-C24 fatty acids that Malassezia needs to thrive).
The "yeast" in the name can be misleading, but FA safety is about chemical composition and not ingredient origin.
Learn more about Yeast ExtractLingonberries are little red berries from arctic region. They are a great source of antioxidants and have been shown to help soothe inflammation.
The red color of the berries indicate high polyphenol content, the source of its antioxidants. Antioxidants help soothe the skin and protect cells against oxidative damage.
These berries also contain Vitamins A, B, and C.
Studies show the polyphenol content varies depending on region. Lingonberries grown in Alaska and Europe show high antioxidant content, while the lowest antioxidant content is found in eastern Canada.
Learn more about Vaccinium Vitis-Idaea Fruit ExtractSodium Hyaluronate is the salt form of hyaluronic acid. It is a long sugar chain that is naturally found in your skin, joints, and connective tissue that maintains hydration and elasticity.
In skincare, it works as a humectant. It pulls water from the environment and deeper layers of skin and binds it to the surface.
Interestingly, the size of the molecule affects its behavior:
Some clinical evidence links low molecular weight versions to improved wrinkle depth, elasticity, anti-inflammatory effects, and barrier repair.
Many serums use a blend of both weights so you can get surface hydration plus longer-lasting and deeper effects.
You'll typically see concentrations between 0.1-2% for this ingredient.
Learn more about Sodium HyaluronateThis ingredient is extracted from the germ part of the wheat plant. The germ of a plant refers to the seed embryo, or part that sprouts into a new plant.
Some studies have found wheat germ to help with wound healing.
Zinc gluconate has antibacterial and wound healing properties. It is particularly effective against fighting inflammatory acne.
This ingredient is the zinc salt of the PHA gluconic acid. PHAs are gentle cousins to AHAs.
Ginkgo Biloba Leaf Extract comes from the leaves of the Ginkgo tree. It has soothing and antioxidant properties.
The leaves of ginkgo contains flavonoids and terpenoids, potent antioxidants. Antioxidants may protect your skin from damage caused by external sources such as pollution.
Its soothing ability comes from a variety of compounds including biflavones, a type of flavonoid. Studies show gingko biloba has strong anti-inflammatory properties.
Fun fact: This tree is native to China and has been used in traditional Chinese medicine for thousands of years.
Learn more about Ginkgo Biloba Leaf ExtractWe don't have a description for Magnesium Aspartate yet.
Oryza Sativa Extract comes from the rice grain, Oryza sativa. Rice extract has wound healing, antioxidant, anti-inflammatory, and hydrating properties.
Rice grains contain numerous antioxidants which may help with anti-aging, such as vitamin E. Antioxidants help stabilize free-radical molecules. Unstable free-radical molecules may damage your skin cells and accelerate signs of aging.
A study from 2002 found rice to help increase the rate of wound healing. The same study found an improvement of skin barrier function in the patients after taking rice baths.
Numerous in-vitro studies have found rice water to help decrease sun damage by increasing collagen production and inhibiting the process of tyrosinase.
Long story short- tyrosinase is an enzyme that controls melanin production. Our bodies start producing melanin (AKA tanning) when exposed to UV radiation to protect against damage. Rice water is found to partially block this process.
Though more research is needed on rice's ability to help with UV protection, recent studies seem promising.
Wondering why rice is hydrating? The protein in rice have emollient properties. Emollients create a barrier on the skin to trap moisture in, keeping your skin moisturized.
Some rice extract may have mildly-exfoliating properties. These are mainly limited to Oryza Sativa (Rice) Bran and Oryza Sativa (Rice) Germ Powder.
This rice was first cultivated in China over 10,000 years ago. Many cultures throughout Asia have used rice water on skin and hair for centuries.
Learn more about Oryza Sativa ExtractCitrus Aurantium Dulcis Fruit Extract is more commonly known as the bitter orange. Native to Southeast Asia, this extract is commonly found in both cosmetics and foods.
The bitter orange possesses antibacterial and antioxidant properties.
It can also be mildly exfoliating due to the citric acid, an AHA.
Citrus fruits are rich in flavonoids, alkaloids, and vitamin C.
Learn more about Citrus Aurantium Dulcis Fruit ExtractGinseng root is a well-loved ingredient in Asian skincare for good reason. It hydrates the skin, soothes irritation, and helps even out skin tone.
In traditional East Asian medicine, ginseng has been used for centuries both as food and as a healing remedy, and modern research continues to confirm its skin benefits.
One of the standout features of ginseng is its ability to improve blood circulation and oxygen delivery to the skin, bringing a fresh supply of nutrients to support overall skin health. It also has antioxidant and anti-inflammatory properties. This helps to protect your skin against damage from UV exposure, pollution, and daily stress.
Additionally, studies suggest that ginseng may help reduce hyperpigmentation by inhibiting tyrosinase, the enzyme involved in melanin production.
There are different types of ginseng used in skincare, and while they all share core benefits, their potency can vary.
Most products use fresh or white ginseng because itās more affordable. However, red ginseng, produced by steaming the root, contains higher levels of ginsenosides, which are compounds with proven anti-aging effects. These ginsenosides help reduce the appearance of wrinkles and improve skin elasticity.
Note: All forms of ginseng are listed simply as āPanax ginsengā in ingredient lists. We recommend reaching out to the brand if you have questions about which type of ginseng is used in their ingredients.
For general antioxidant benefits, any ginseng extract will do, but for wrinkle care or firmer skin, red or fermented ginseng is often more effective.
In short, ginseng is a powerhouse ingredient that supports hydration, radiance, and resilience.
Learn more about Panax Ginseng Root ExtractWe don't have a description for Citrus Nobilis Fruit Extract yet.
This ingredient is a copper salt known for its wound healing properties.
Our bodies use copper to help stabilize our skin's collagen and elastin. Its also an essential for superoxide dismutase, an enzyme with strong antioxidant properties.
Copper has wound healing properties due to its role in creating new blood vessels and tissue repair.
Learn more about Copper GluconateCitrus Aurantium Bergamia Fruit Extract comes from the bergamot orange.
Bergamot oranges contain antioxidants, dietary fiber, vitamins such as Vitamin C, and minerals.
This ingredient is also known as grapefruit or citricidal extract. It has perfuming and astringent properties.
Astringents shrinks tissue by drawing water out of your skin. This leads to a temporary tightening effect in the skin.
Beta-Carotene is a fat-soluble carotenoid pigment. It is the thing responsible for giving carrots, sweet potatoes, apricots, and other orange-yellow produce their color.
It is a potent antioxidant that neutralizes free radicals (mainly reactive oxygen species) that come at your skin from both the environment and internal processes.
When applied topically, beta-carotene accumulates in your outermost layer of skin and acts as a first-line defense against photo-oxidative stress.
Research has established that carotenoids like beta-carotene boosts your skin's innate resistance against UVB induced erythema. Please know this does not mean beta-carotene can replace your sunscreen.
Newer studies show it can also help inhibit molecular markers of oxidative stress like MMP-1 and MMP-9, enzymes that break down collagen.
In some cases, it can be used as a cosmetic colorant as well (INCI name: CI 40800).
Beta-carotene pairs well with other antioxidants like Vitamin E and Vitamin C for a synergistic effect.
Learn more about Beta-CaroteneTocopherol is a fat-soluble antioxidant known as Vitamin E.
You'll find this ingredient in the vast majority of skincare (for good reason). It works to neutralize free radicals, or unstable molecules generated by UV exposure, pollution, and other environmental stressors, before they can cause oxidative damage to your skin cells.
Topically applied tocopherol has been shown to protect against UV damage by ramping up the skin's own natural defense enzymes.
It also acts as a skin conditioning agent; some studies show that regular topical use can improve the skin's water-binding capacity over 2-4 weeks.
This ingredient is especially loved for being a team player. When combined with Vitamin C, the photoprotective effect of both ingredients roughly doubles and the combo also helps reduce UV-induced DNA damage.
This ingredient has some brightening potential but it's more of a prevention ingredient than spot-fader. Cell studies show it can slow down melanin production but it's worth noting that it's not the most powerful brightener out there.
In formulations, it also serves as a stabilizer that helps protect other oxidation-prone ingredients from degrading.
Concentrations usually range from 0.1-1% in most leave-on products.
Learn more about TocopherolZea Mays Oil is refined oil. It is created from the process of wet milling corn, or zea mays. Zea Mays Oil is fragrance ingredient, hair conditioning agent, occlusive skin conditioning agent, surfactant, and emulsifying agent.
It is composed of several fatty acids, including myristic, palmitic, stearic, oleic, and linoleic.
Glycine Soja Oil is a plant-derived oil from soybean seeds. Like other oils, it is rich in essential fatty acids (mostly linoleic and oleic) that support skin hydration and barrier function.
The fatty acids are able to integrate into the lipid matrix of the stratum corneum to help soften skin and reduce water loss.
On top of that, soybean oil is rich in vitamins like vitamin E, a potent antioxidant.
Research on soybean's active components also point to anti-inflammatory, collagen-stimulating, antioxidant activity, and protection against UV-induced oxidative damage.
Most of this research applies to the broader soybean plant and not just the oil fraction alone.
This ingredient may not be fungal acne safe due to the oleic acid content.
Learn more about Glycine Soja OilXanthan gum is used as a stabilizer and thickener within cosmetic products. It helps give products a sticky, thick feeling - preventing them from being too runny.
On the technical side of things, xanthan gum is a polysaccharide - a combination consisting of multiple sugar molecules bonded together.
Xanthan gum is a pretty common and great ingredient. It is a natural, non-toxic, non-irritating ingredient that is also commonly used in food products.
Learn more about Xanthan GumDextran is a sugar (polysaccharide) with skin hydrating properties.
Fun fact: Louis Pasteur first discovered this ingredient as a microbial product in wine.
Carbomer is a high-molecular weight polymer of acrylic acid. It is used to form gels and thicken formulas.
Due to its large molecular size, carbomer has minimal skin penetration and is considered an inert ingredient.
A high amount of carbomer can cause pilling or balling up of products. Don't worry, most products contain 1% or less of carbomer.
Learn more about CarbomerPotassium Sorbate is a preservative used to prevent yeast and mold in products. It is commonly found in both cosmetic and food products.
This ingredient comes from potassium salt derived from sorbic acid. Sorbic acid is a natural antibiotic and effective against fungus.
Both potassium sorbate and sorbic acid can be found in baked goods, cheeses, dried meats, dried fruit, ice cream, pickles, wine, yogurt, and more.
You'll often find this ingredient used with other preservatives.
Learn more about Potassium SorbateSodium Benzoate is a preservative. It's used in both cosmetic and food products to inhibit the growth of mold and bacteria. It is typically produced synthetically.
Both the US FDA and EU Health Committee have approved the use of sodium benzoate. In the US, levels of 0.1% (of the total product) are allowed.
Sodium benzoate works as a preservative by inhibiting the growth of bacteria inside of cells. It prevents the cell from fermenting a type of sugar using an enzyme called phosphofructokinase.
It is the salt of benzoic acid. Foods containing sodium benzoate include soda, salad dressings, condiments, fruit juices, wines, and snack foods.
Studies for using ascorbic acid and sodium benzoate in cosmetics are lacking, especially in skincare routines with multiple steps.
We always recommend speaking with a professional, such as a dermatologist, if you have any concerns.
Learn more about Sodium BenzoateSodium Hydroxide is also known as lye or caustic soda. It is used to adjust the pH of products; many ingredients require a specific pH to be effective.
In small amounts, sodium hydroxide is considered safe to use. However, large amounts may cause chemical burns due to its high alkaline.
Your skin has a natural pH and acid mantle. This acid mantle helps prevent harmful bacteria from breaking through. The acid mantle also helps keep your skin hydrated.
"Alkaline" refers to a high pH level. A low pH level would be considered acidic.
Learn more about Sodium HydroxideCitric Acid is an alpha hydroxy acid (AHA) naturally found in citrus fruits like oranges, lemons, and limes.
Like other AHAs, citric acid can exfoliate skin by breaking down the bonds that hold dead skin cells together. This helps reveal smoother and brighter skin underneath.
However, this exfoliating effect only happens at high concentrations (20%) which can be hard to find in cosmetic products.
Due to this, citric acid is usually included in small amounts as a pH adjuster. This helps keep products slightly more acidic and compatible with skin's natural pH.
In skincare formulas, citric acid can:
While it can provide some skin benefits, research shows lactic acid and glycolic acid are generally more effective and less irritating exfoliants.
Most citric acid used in skincare today is made by fermenting sugars (usually from molasses). This synthetic version is identical to the natural citrus form but easier to stabilize and use in formulations.
Read more about some other popular AHA's here:
Learn more about Citric AcidDehydroacetic Acid is a synthetic preservative that keeps your products safe from microbes.
As an organic acid, it penetrates microbial cell walls and disrupts cellular metabolism. This makes it effective against bacteria, yeast, and mold.
It is effective at low concentrations (<0.6%). Clinical studies have found it to be non-irritating, non-sensitizing, and non-photosensitizing.
Learn more about Dehydroacetic AcidBenzoic Acid is an organic acid that shows up in cosmetics as a preservative. It helps keep a product from spoiling by holding back the growth of yeast, mold, and some bacteria.
This ingredient also functions as a fragrance ingredient that helps mask the unpleasant scent of other ingredients.
The way it works is worth understanding; benzoic acid works when the formula is acidic. It is able to sneak into a microbe's cell and mess up how it functions to stop it from growing in an acidic product.
However, the acid switches to an inactive form and stops working if a product isn't acidic enough (above ~5 pH). This is why you'll often see it in low pH products or teamed up with other preservatives to cover the gap.
Safety wise, it's one of the better studied preservatives out there.
The Cosmetic Ingredient Review Expert Panel has concluded this ingredient to be safe for use in cosmetic formulations at concentrations up to 5%.
A large international review found this ingredient had no effects on the human body and had low irritation potential.
Just so you know, real world use is usually much lower than the 5% ceiling (usually 1% of less).
The EU caps it at 2.5% in rinse-off products, 1.7% in oral care, and 0.5% in leave-on products.
One thing worth mentioning (it's nothing to worry about): some people get a little stinging or flushing where they apply it. This isn't a true allergy; it's a temporary and harmless reaction. This is the same kind of mild tingle you might notice from sorbic acid.
Learn more about Benzoic AcidSorbic Acid is a preservative that stops your product from spoiling by stopping microbes from growing.
As a preservative, it's kind of a specialist: it has a broad spectrum of activity against yeast and molds but is weaker against bacteria. That's why it's often paired with another preservative to cover that gap.
This ingredient is also pretty picky about pH; it performs best at pH 6.5 or below.
At the right pH level, sorbic acid is "active" and can slip through the outer wall of a microbe. Once inside, it turns the cell's interior more acidic to shut down the microbe from the inside.
The EU caps this ingredient at 0.6% while the CIR has concluded it's safe at concentrations up to 1%. It's most often used around 0.05-0.2% in cosmetics.
Though this ingredient is considered low-sensitizing and well-tolerated, a very small number of people may have a contact allergy to it. Be sure to patch test if you have a history of allergies towards preservatives.
Learn more about Sorbic AcidPropanediol is an all-star ingredient. It softens, hydrates, and smooths the skin.Ā
Itās often used to:
Propanediol is not likely to cause sensitivity and considered safe to use. It is derived from corn or petroleum with a clear color and no scent.
Learn more about Propanediol1,2-Hexanediol is a synthetic liquid and another multi-functional powerhouse.Ā
It is a:
- Humectant, drawing moisture into the skin
- Emollient, helping to soften skin
- Solvent, dispersing and stabilizing formulas
- Preservative booster, enhancing the antimicrobial activity of other preservativesĀ
Benzyl Alcohol is an aromatic alcohol with several roles: it's a preservative, solvent, and mild fragrance component with a floral scent.
This ingredient has been deemed safe for use in cosmetic formulations at concentrations up to 5%, and up to 10% in hair dyes. You'll typically see 0.5-2% in most rinse-off or leave-on products.
As a preservative, it works by disrupting the membrane of microbial proteins. This helps keep bacteria and fungi from growing in your products.
The sensitization picture is actually quite assuring as well:of nearly 71,000 patients patch tested with benzyl alcohol, only 0.21% showed a positive reaction with most of them being weakly positive.
This led researchers to conclude that benzyl alcohol cannot be regarded as a significant contact allergen.
It is worth noting this ingredient is classified as one of the EU's regulated fragrance allergens and restricted to 1% in finished products.
Labels must also declare it in concentrations above 0.001% in leave-on products and 0.01% in rinse-off products.
At concentrations around 5%, localized redness and itching can appear as a direct irritant response and not as a true allergic reaction.
Learn more about Benzyl AlcoholPhenethyl Alcohol is a colorless and aromatic alohol. It is naturally occuring in essential oils.
The scent of this ingredient is floral and often compared to rose.
Like other alcohols, this ingredient helps prevent the growth of bacteria. However, its main purpose is to impact a fragrance.
Learn more about Phenethyl AlcoholButylene Glycol (or BG) is used within cosmetic products for a few different reasons:
Overall, Butylene Glycol is a safe and well-rounded ingredient that works well with other ingredients.
Though this ingredient works well with most skin types, some people with sensitive skin may experience a reaction such as allergic rashes, closed comedones, or itchiness.
Learn more about Butylene GlycolPentylene glycol is typically used within a product to thicken it. It also adds a smooth, soft, and moisturizing feel to the product. It is naturally found in plants such as sugar beets.
The hydrophilic trait of Pentylene Glycol makes it a humectant. As a humectant, Pentylene Glycol helps draw moisture from the air to your skin. This can help keep your skin hydrated.
This property also makes Pentylene Glycol a great texture enhancer. It can also help thicken or stabilize a product.
Pentylene Glycol also acts as a mild preservative and helps to keep a product microbe-free.
Some people may experience mild eye and skin irritation from Pentylene Glycol. We always recommend speaking with a professional about using this ingredient in your routine.
Pentylene Glycol has a low molecular weight and is part of the 1,2-glycol family.
Learn more about Pentylene GlycolCaprylyl Glycol is a humectant, skin conditioner, emollient, and preservative booster derived from either caprylic acid or synthetically created.
Typical use levels vary from 0.3-1% as a preservative booster and go up to 2% to condition skin.
Because it is not a free-fatty acid, this ingredient is fungal acne safe (there's nothing for Malassezia to feed on).
Learn more about Caprylyl GlycolParfum is a catch-all term for an ingredient or more that is used to give a scent to products.
Also called "fragrance", this ingredient can be a blend of hundreds of chemicals or plant oils. This means every product with "fragrance" or "parfum" in the ingredients list is a different mixture.
For instance, Habanolide is a proprietary trade name for a specific aroma chemical. When used as a fragrance ingredient in cosmetics, most aroma chemicals fall under the broad labeling category of āFRAGRANCEā or āPARFUMā according to EU and US regulations.
The term 'parfum' or 'fragrance' is not regulated in many countries. In many cases, it is up to the brand to define this term.
For instance, many brands choose to label themselves as "fragrance-free" because they are not using synthetic fragrances. However, their products may still contain ingredients such as essential oils that are considered a fragrance by INCI standards.
One example is Calendula flower extract. Calendula is an essential oil that still imparts a scent or 'fragrance'.
Depending on the blend, the ingredients in the mixture can cause allergies and sensitivities on the skin. Some ingredients that are known EU allergens include linalool and citronellol.
Parfum can also be used to mask or cover an unpleasant scent.
The bottom line is: not all fragrances/parfum/ingredients are created equally. If you are worried about fragrances, we recommend taking a closer look at an ingredient. And of course, we always recommend speaking with a professional.
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Sepai is a Spanish brand
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Read more about usĀ· Updated July 15, 2025 • Added by jnm