What's inside
What's inside
Key Ingredients
Benefits
Concerns
Ingredients Side-by-side
Water
Skin ConditioningEthylhexyl Methoxycinnamate
UV AbsorberIsopropyl Myristate
EmollientEthylhexyl Triazone
UV AbsorberMethylene Bis-Benzotriazolyl Tetramethylbutylphenol
UV FilterTitanium Dioxide
Cosmetic ColorantNiacinamide
SmoothingPhenylbenzimidazole Sulfonic Acid
UV AbsorberButylene Glycol
HumectantTriethanolamine
BufferingPhenoxyethanol
PreservativeAmmonium Polyacryloyldimethyl Taurate
Emulsion StabilisingXanthan Gum
EmulsifyingGlycerin
HumectantPEG-100 Stearate
SurfactantGlyceryl Stearate
EmollientCetearyl Alcohol
EmollientDecyl Glucoside
CleansingAcetyl Glucosamine
Skin ConditioningChlorphenesin
AntimicrobialSodium Lactate
BufferingSodium PCA
HumectantTetrasodium EDTA
Sodium Hyaluronate
HumectantPropylene Glycol
HumectantBroussonetia Papyrifera Bark Extract
Skin ConditioningMorus Alba Bark Extract
Skin ConditioningPyrus Malus Fruit Extract
Skin ConditioningCamellia Japonica Flower Extract
EmollientCamellia Sinensis Leaf Extract
AntimicrobialMadecassoside
AntioxidantRhus Semialata Extract
Skin ConditioningTricholoma Matsutake Extract
Skin ConditioningEthylhexylglycerin
Skin ConditioningCaprylhydroxamic Acid
Glycine
BufferingFructose
HumectantUrea
BufferingInositol
HumectantLactic Acid
BufferingWater, Ethylhexyl Methoxycinnamate, Isopropyl Myristate, Ethylhexyl Triazone, Methylene Bis-Benzotriazolyl Tetramethylbutylphenol, Titanium Dioxide, Niacinamide, Phenylbenzimidazole Sulfonic Acid, Butylene Glycol, Triethanolamine, Phenoxyethanol, Ammonium Polyacryloyldimethyl Taurate, Xanthan Gum, Glycerin, PEG-100 Stearate, Glyceryl Stearate, Cetearyl Alcohol, Decyl Glucoside, Acetyl Glucosamine, Chlorphenesin, Sodium Lactate, Sodium PCA, Tetrasodium EDTA, Sodium Hyaluronate, Propylene Glycol, Broussonetia Papyrifera Bark Extract, Morus Alba Bark Extract, Pyrus Malus Fruit Extract, Camellia Japonica Flower Extract, Camellia Sinensis Leaf Extract, Madecassoside, Rhus Semialata Extract, Tricholoma Matsutake Extract, Ethylhexylglycerin, Caprylhydroxamic Acid, Glycine, Fructose, Urea, Inositol, Lactic Acid
Water
Skin ConditioningEthylhexyl Methoxycinnamate
UV AbsorberCaprylyl Methicone
Skin ConditioningEthylhexyl Salicylate
UV AbsorberEthylhexyl Triazone
UV AbsorberIsononyl Isononanoate
EmollientC13-14 Isoparaffin
EmollientNiacinamide
SmoothingButylene Glycol
HumectantPhenylbenzimidazole Sulfonic Acid
UV AbsorberTriethanolamine
BufferingC9-12 Alkane
SolventMethylene Bis-Benzotriazolyl Tetramethylbutylphenol
UV FilterTitanium Dioxide
Cosmetic ColorantDiisostearyl Malate
EmollientCI 77891
Cosmetic ColorantPhenoxyethanol
PreservativeAcrylates/C10-30 Alkyl Acrylate Crosspolymer
Emulsion StabilisingGlycerin
HumectantPolyglyceryl-2 Triisostearate
EmulsifyingAcrylamide/Sodium Acryloyldimethyltaurate Copolymer
Emulsion StabilisingDimethicone/Vinyl Dimethicone Crosspolymer
Skin ConditioningAluminum Hydroxide
EmollientDimethicone
EmollientChlorphenesin
AntimicrobialDecyl Glucoside
CleansingPolyhydroxystearic Acid
EmulsifyingHydrogen Dimethicone
Isohexadecane
EmollientLaureth-7
EmulsifyingSodium Lactate
BufferingSodium PCA
HumectantPentylene Glycol
Skin ConditioningSodium Hyaluronate
HumectantTetrasodium EDTA
Methyl Diisopropyl Propionamide
MaskingAcetyl Glucosamine
Skin ConditioningCetearyl Methicone
Skin ConditioningPropylene Glycol
HumectantXanthan Gum
EmulsifyingBroussonetia Papyrifera Bark Extract
Skin ConditioningCamellia Japonica Flower Extract
EmollientCamellia Sinensis Leaf Extract
AntimicrobialMorus Alba Bark Extract
Skin ConditioningPyrus Malus Fruit Extract
Skin ConditioningRhus Semialata Extract
Skin ConditioningFructose
HumectantGlycine
BufferingInositol
HumectantLactic Acid
BufferingMadecassoside
AntioxidantUrea
BufferingCaprylhydroxamic Acid
Ethylhexylglycerin
Skin ConditioningSodium Benzoate
MaskingTricholoma Matsutake Extract
Skin ConditioningWater, Ethylhexyl Methoxycinnamate, Caprylyl Methicone, Ethylhexyl Salicylate, Ethylhexyl Triazone, Isononyl Isononanoate, C13-14 Isoparaffin, Niacinamide, Butylene Glycol, Phenylbenzimidazole Sulfonic Acid, Triethanolamine, C9-12 Alkane, Methylene Bis-Benzotriazolyl Tetramethylbutylphenol, Titanium Dioxide, Diisostearyl Malate, CI 77891, Phenoxyethanol, Acrylates/C10-30 Alkyl Acrylate Crosspolymer, Glycerin, Polyglyceryl-2 Triisostearate, Acrylamide/Sodium Acryloyldimethyltaurate Copolymer, Dimethicone/Vinyl Dimethicone Crosspolymer, Aluminum Hydroxide, Dimethicone, Chlorphenesin, Decyl Glucoside, Polyhydroxystearic Acid, Hydrogen Dimethicone, Isohexadecane, Laureth-7, Sodium Lactate, Sodium PCA, Pentylene Glycol, Sodium Hyaluronate, Tetrasodium EDTA, Methyl Diisopropyl Propionamide, Acetyl Glucosamine, Cetearyl Methicone, Propylene Glycol, Xanthan Gum, Broussonetia Papyrifera Bark Extract, Camellia Japonica Flower Extract, Camellia Sinensis Leaf Extract, Morus Alba Bark Extract, Pyrus Malus Fruit Extract, Rhus Semialata Extract, Fructose, Glycine, Inositol, Lactic Acid, Madecassoside, Urea, Caprylhydroxamic Acid, Ethylhexylglycerin, Sodium Benzoate, Tricholoma Matsutake Extract
Ingredients Explained
These ingredients are found in both products.
Ingredients higher up in an ingredient list are typically present in a larger amount.
Acetyl Glucosamine is an antioxidant and humectant. It is an amino acid sugar and is naturally found in our skin.
The cool thing about this ingredient? It helps the skin produce hyaluronic acid and boost hydration. It also has antioxidant benefits to protect skin cells.
When paired with niacinamide, Acetyl Glucosamine has been shown to be effective at reducing discoloration.
Learn more about Acetyl GlucosamineWe don't have a description for Broussonetia Papyrifera Bark Extract yet.
Butylene 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 GlycolCamellia Japonica Flower Extract comes from the Japanese Camellia plant. This plant is native to East Asia and known as "Tsubaki" in Japanese.
Tsubaki flowers possess antioxidant and soothing properties. This flower has shown to be effective at fighting pollution damage by protecting your skin's fibroblasts. Your skin's fibroblasts help create collagen and collagen is responsible for youthful, plump skin.
This flower also contains many antioxidant enzymes. Antioxidants help fight free-radical molecules. Free-radical molecules are capable of damaging our cells and other genetic material. They may originate from sunlight, air pollution, or cigarette smoke. These free-radical molecules are unstable and are often looking for missing electrons. This instability causes free-radicals to damage our cells. Antioxidants help stabilize free-radicals by donating extra electrons.
Thus, Camellia Japonica Flower Extract may help reduce the signs of aging.
Learn more about Camellia Japonica Flower ExtractCamellia Sinensis Leaf Extract (tea extract) is one of the most well-researched plant extracts in skincare with an impressive resume.
Black tea, green tea, and oolong tea are all harvested from the Camellia Sinensis plant.
Studies show green tea extract and its catechins (like epigallocatechin gallate (EGCG)) help your skin cells product energy more efficiently and reducing the number of free-radicals that can damage your skin from the inside.
In lab-grown skin models, this translated to younger, healthier, and stronger skin.
There's also good sun protection data; researchers saw less DNA damage and redness on human skin when green tea was applied before UVB exposure. And the more they applied, the better the protection.
Needless to say, this ingredient shouldn't replace your sunscreen. But it is a great supportive ingredient that you can already find in many sunscreens and antioxidant serums.
A 2009 study found a 2% green tea lotion was effective for mild-to-moderate acne thanks to its anti-inflammatory and mild antimicrobial activity.
The quality of the extract matters a lot here:
Good extracts contain 50-90% catechins while lower quality ones are mostly there for marketing. We recommend reaching out to the brand if you have questions about the quality or source of their ingredients.
Human Repeated Insult Patch Testing showed no irritation or sensitization at use concentrations (0.86% in leave-on products and up to 30% as leaf water).
Learn more about Camellia Sinensis Leaf ExtractCaprylhydroxamic Acid is a chelating agent that helps cosmetics stay fresh, stable, and consistent over time.
Chelating agents help prevent metal ions from binding to other ingredients. This helps prevent unwanted reactions and effects from using the product. It also helps prevent the growth of unwanted microbes in products that contain water.
Caprylhydroxamic Acid is often used with natural antimicrobial products as an alternative to preservatives.
Learn more about Caprylhydroxamic AcidChlorphenesin is a synthetic preservative. It helps protect a product against bacteria in order to extend shelf life. In most cases, Chlorphenesin is paired with other preservatives such as phenoxyethanol and caprylyl glycol.
Chlorphenesin is a biocide. This means it is able to help fight the microorganisms on our skin. It is also able to fight odor-releasing bacteria.
Chlorphenesin is soluble in both water and glycerin.
Studies show Chlorphenesin is easily absorbed by our skin. You should speak with a skincare professional if you have concerns about using Chlorphenesin.
Learn more about ChlorphenesinDecyl Glucoside is a plant-derived surfactant and emulsion stabilizer. It is created by reacting glucose with the fatty acids from plants.
Like all surfactants, it works by lowering the surface tension between water and oil. This makes it so that dirt, sebum, and makeup can be lifted off your skin and rinsed away. It also produces a dense and creamy foam.
Because it has a neutral charge, it is compatible with a wide range of ingredients and stays stable across a broad pH range/water hardiness conditions.
Patch testing has shown it to have the lowest irritation potential among common cleansing surfactants (like SLS).
Typical use levels range from 5-20% in rinse-off cleansers.
One thing worth knowing: The American Contact Dermatitis Society named the parent family, alkyl glucosides, "Allergen of the Year" in 2017. The prevalence of allergy is pretty low but be sure to patch test if you've reacted to "gentle" or sulfate-free cleansers before.
This ingredient is fungal acne safe because the fatty alcohol portion of this ingredient is not within the C11-24 chain length that Malassezia can metabolize.
Learn more about Decyl GlucosideThis ingredient is also known as Octinoxate and is one of the oldest and most widely used chemical UV filters in skincare.
It has a simple job: soap up UVB radiation (290-320 nm), the wavelengths responsible for sunburn and a big chunk of long-term sun damage.
In formulas, it's always paired with a separate UVA filter because octinoxate solely protects skin from UVB.
Because it's an oil-soluble liquid, it's easy to blend into the oil phase of lotions/creams and gives a cosmetically elegant feel.
The one quirk about formulating this ingredient is photostability; the molecule slowly changes shape into a less effective version when sunlight hits it. So the longer you're in the sun, the weaker its protection gets. The drop can be more than 30% in some formulas.
It also doesn't play nice with Avobenzone (the common UVA filter) since avobenzone destabilizes octinoxate and the two degrade each other. But don't worry: brands have solved this issue by adding photostabilizers like Tinosorb S to prevent degradation and keep SPF stable under heavy UV exposure.
The maximum allowed level is 10% in the EU and Australia, 7.5% in the US and Canada, and 20% in Japan.
The Cosmetic Ingredient Review Panel has concluded this ingredient to be safe in cosmetics up to 10%.
One last thing worth knowing for context:
Octinoxate has been the subject of ongoing review in Europe where the Scientific Committee on Consumer Safety's (SCCS) 2025 final opinion is that this ingredient is an endocrine-active substance.
Lab and animal studies suggest it can act a bit like a hormone in the body (mildly mimicking estrogen and slightly blocking male hormones). It's important to know this hasn't really been shown to happen in everyday human use.
This ingredient is also banned in Hawaii over coral reef concerns.
Learn more about Ethylhexyl MethoxycinnamateEthylhexyl Triazone (aka Octyl Triazone) is an oil-soluble organic UVB filter. It has peak absorption around 314 nm, right in the middle of the UVB range.
This ingredient is described as one of the most effective UVB filters available and small concentrations are enough to deliver a high SPF thanks to its strong UV absorbing power.
Formulators love it for its stability; its ability to filter UV stays practically unchanged even under intense radiation and it can also help boost the photostability of less stable filters like avobenzone.
It's also a great pick for water resistant products because it's insoluble in water and has a good affinity for keratin.
Because it's a big, heavy molecule, the European Scientific Committee has found to to have very low dermal penetration and negative results for allergenicity.
In vitro testing also showed a low absorption rate and clean results on irritation.
Typical use levels are 1-5% with 5% being the maximum in the EU, Japan, and other markets that allow it. However, this ingredient is not approved yet in the US or Canada.
Learn more about Ethylhexyl TriazoneEthylhexylglycerin is created from glycerin. It is a multitasker ingredient that:
The CIR Expert Panel found minimal skin absorption or sensitization of any kind in a safety assessment. Though this ingredient is considered well-tolerated, a small number of cases of allergic dermatitis have been published since 2002. Just be sure to patch test if you are unsure.
Industry-reported use ranges from 8% in rinse-off products and 2% in leave-on formulations.
Learn more about EthylhexylglycerinGlycerin (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 GlycerinGlycine is the smallest amino acid and a key building block of collagen. It's part if 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.
A study from 2022 found that an amino acid complex featuring taurine, arginine, and glycine significantly reduced skin irritation, improved redness, and accelerated the skin repair process.
Inositol is a sugar alcohol naturally found in the human body. Our bodies use this ingredient in the process of growing new cells.
Studies show inositol to be a key component for keratinocyte growth.
Keratinocytes make up the majority of the outermost layer of skin. These cells protect our skin from UV exposure, infection, and help keep skin hydrated.
This ingredient is also considered a humectant. Humectants help hydrate the skin by drawing moisture to it.
Learn more about InositolLactic Acid is another well-loved alpha hydroxy acid (AHA). It is gentler than glycolic acid but still highly effective.
Its main role is to exfoliate the surface of the skin by loosening the “glue” that holds dead skin cells together. Shedding those old cells leads to smoother, softer, and more even-toned skin.
Because lactic acid molecules are larger than glycolic acid, they don’t penetrate as deeply. This means they’re less likely to sting or irritate, making it a great choice for beginners or those with sensitive skin.
Like glycolic acid, it can:
Lactic acid also acts as a humectant (like hyaluronic acid). It can draw water into the skin to improve hydration and also plays a role in the skin's natural moisturizing factor (NMF) in the form of sodium lactate.
Studies show it can boost ceramide production to strengthen the skin barrier and even help balance the skin’s microbiome.
To get results, choose products with a pH between 3-4.
Lower strengths (5-12%) focus on surface exfoliation; higher strengths (12% and up) can reach deeper in the dermis (deeper, supportive layer) to improve skin texture and firmness over time.
Though it was originally derived from milk, most modern lactic acid used in skincare is vegan. It is made through non-dairy fermentation to create a bio-identical and stable form suitable for all formulations.
When lactic acid shows up near the end of an ingredient list, it usually means the brand added just a tiny amount to adjust the product’s pH.
Legend has it that Cleopatra used to bathe in sour milk to help reduce wrinkles.
Lactic acid is truly a gentle multitasker: it exfoliates, hydrates, strengthens, and brightens. It's a great ingredient for giving your skin a smooth, glowing, and healthy look without the harshness of stronger acids.
Read more about some other popular AHA's here:
Learn more about Lactic AcidMadecassoside is one of four active compounds found in Centella asiatica and is one of the main reasons Centella is so effective at calming irritated skin and supporting the moisture barrier.
There's a solid body of peer-reviewed research backing Madecassoside for several skin benefits. Studies have found:
Madecassoside pairs well with other hydrating or antioxidant ingredients like Ascorbic Acid or Hyaluronic Acid.
Learn more about MadecassosideThis ingredient is also known as Tinosorb M or Bisoctrizole and is a bit of an overachiever in the sunscreen world.
It's a hybrid broad-spectrum filter that covers UVA and UVB (~280-400nm) with peak absorption around 305nm for UVB or 360nm for UVA (and a tiny bit in blue-light territory as well).
One of its best party tricks is photostability; it doesn't break down with repeated sun exposure and doesn't generate free radicals in the process either. You'll also see it paired with wobbly filters like avobenzone because it helps stabilize them.
The safety profile is assuring as well. Because it's a large molecule, it doesn't easily absorb into skin and rarely causes irritation.
It's approved in the EU, Asia, and Australia up to 10% and most formulas land somewhere in the 2-10% range.
You won't find it as a sunscreen active in the US, but it can make an appearance as a formula-protecting UV-absorber.
Learn more about Methylene Bis-Benzotriazolyl TetramethylbutylphenolWe don't have a description for Morus Alba Bark 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 NiacinamidePhenoxyethanol is one of the most widely used preservatives in skincare (and for good reason!).
It has a large spectrum of antimicrobial activity and especially effective bacteria, yeast, and mold while only having a weak effect on your skin's natural microbiome.
On a cellular level, it disrupts the cell membranes of microbes by poking holes that make the cell leak. This shuts down the chemical reactions the microbe needs to make energy so it can no longer survive.
Another perk of this ingredient is that it stays functional across a wide pH range (3-10).
You'll often see it paired with boosters like Ethylhexylglycerin; one study showed that a 1:9 ratio of Ethylhexylglycerin to Phenoxyethanol damages bacterial membranes as effectively as doubling the Phenoxyethanol concentration on its own.
Typical use concentrations range from 0.3-1% depending on the formula, and this ingredient is capped at 1% int the EU.
Safety-wise, the fear mongering does not hold up to the evidence. The EU's Scientific Committee on Consumer Safety and FDA consider it safe as a preservative at up to 1%, including for children of all ages.
Adverse systemic effects only showed up in animal studies at exposures roughly 200x higher than what people get from cosmetics. And despite its very widespread use, this ingredient is a rare sensitizer and allergic reactions are uncommon.
Learn more about PhenoxyethanolPhenylbenzimidazole Sulfonic Acid (aka Ensulizole) is a chemical UV filter that's a bit of a unicorn in the sunscreen world: it's water-soluble where most organic filters are oil-based.
Being water-solubility is the headline because it feels lightweight and non-greasy in formulations. This makes it suitable for oily or acne-prone skin in gel/water-based products.
Ensulizole primarily protects against UVB radiation (~290-320 nm) but offers some minimal UVA protection. You'll see it often paired with UVA filters to ensure broad-spectrum coverage.
Interestingly, it can help boost SPF and stabilize finicky filters when combined with other UVB absorbers.
The FDA has approved this ingredient for OTC sunscreens up to 4% and the EU's Scientific Committee on Consumer Products concluded that up to 8% is allowed in cosmetics.
In practice, you'll most likely see it formulated around 1-4%.
Safety-wise, it is neither irritating nor sensitizing, shows no photoallergenic potential, and in vivo tests show no mutagenic potential.
You might see discussion about the "double-edged sword" effect of this ingredient. This is because lab tests done on cells in a dish (not on humans) showed Ensulizole can create small amounts of unstable molecules called free radicals that can damage DNA when exposed to UV light. It sounds scary but this is just test-tube research. There hasn't been proof that this can happen when used in a sunscreen on skin.
Learn more about Phenylbenzimidazole Sulfonic AcidPropylene Glycol is a synthetic, colorless, odorless liquid that has been a staple in cosmetics for decades. It is a skin conditioning agent, humectant, and solvent.
As a humectant, it draw water to the skin to reduce flaking and restore suppleness. It's also a solvent that helps dissolve other actives and keeps formulas stable across temperature changes.
The CIR Expert Panel has confirmed this ingredient to be nontoxic and clinical studies show no sensitization at cosmetic use concentrations.
True allergic reactions are quite rare: a 15-year retrospective study of 6,751 patients found only 0.31% had a positive reaction (and less than half were considered clinically relevant).
It seemed that when sensitization does occur, it's most commonly linked to topical medication (like corticosteroids) and not cosmetics. Allergic contact dermatitis also appears largely limited to individuals with underlying skin conditions.
Overall, propylene glycol is a well-studied ingredient that most people can tolerate without issue.
Learn more about Propylene GlycolPyrus Malus Fruit Extract is extract from Apples. Apples are rich in Vitamin C, sugars, and antioxidants.
The sugar in Apples are humectants and help hydrate the skin. On top of that, apples also contain some acids, such as malic acid. These acids may have a mild exfoliating effect.
Last, the phytochemicals found in apples are strong antioxidants. These antioxidants help with anti-aging as they protect your skin cells against oxidative damage.
Learn more about Pyrus Malus Fruit ExtractWe don't have a description for Rhus Semialata Extract yet.
Sodium 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 HyaluronateSodium Lactate is the sodium salt of lactic acid, an AHA. It is a humectant and sometimes used to adjust the pH of a product.
This ingredient is part of our skin's NMF, or natural moisturizing factor. Our NMF is essential for the hydration of our top skin layers and plasticity of skin. NMF also influences our skin's natural acid mantle and pH, which protects our skin from harmful bacteria.
High percentages of Sodium Lactate can have an exfoliating effect.
Fun fact: Sodium Lactate is produced from fermented sugar.
Learn more about Sodium LactateSodium PCA is the sodium salt of pyroglutamic acid. It is naturally occurring in our skin's natural moisturizing factors where it works to maintain hydration.
The PCA stands for pyrrolidone carboxylic acid, a natural amino acid derivative.
This ingredient has skin conditioning, anti-inflammatory, and humectant properties. Humectants help hydrate your skin by drawing moisture from the air. This helps keep your skin moisturized.
Learn more about Sodium PCATetrasodium EDTA is the salt formed from neutralizing ethylenediamine tetraacetic acid with sodium hydroxide. It is a chelating agent and used to prevent metal ions from binding to other ingredients. This helps keep the product and ingredients stable.
Tetrasodium EDTA comes as a white solid and is soluble in water.
Titanium Dioxide (TD) is a mineral UV filter widely used in sunscreens and cosmetics.
It's one of only two UV filters officially classified as "mineral" by regulatory agencies (the other being Zinc Oxide).
A really common myth is that mineral filters work by reflecting UV light off your skin like tiny mirrors.
They don't only do that; modern research shows TD protects mostly by absorbing UV radiation, the same way chemical filters do.
When researchers measured this, reflection accounted for only about 4-5% of the protection (and less than SPF 2 on its own). The other ~95% comes from absorption: the UV photons hit the particle and their energy gets soaked up by its semiconductor band gap rather than bouncing off.
So "reflects vs. absorbs" was never really the right way to split mineral from chemical filters.
TD gives broad-spectrum protection that's strongest in the UVB and UVA-2 range and weaker in the UVA-1 range. Its UVA protection isn't quite as strong as Zinc Oxide's which is why you'll often see the two paired together.
Together, they make a solid broad-spectrum system.
TD is a great pick for sensitive, acne-prone, or redness-prone skin because it's non-irritating and chemically inert. Regulatory reviews classify it as a non-sensitizer and mild-to-non-irritant.
It's also unlikely to cause the "eye sting" some chemical filters are known for.
The main trade-off is cosmetic; TD can leave a white cast and has a thicker texture. This is why mineral sunscreens are often less cosmetically elegant than chemical or hybrid formulas (and harder to shade-match on deeper skin tones).
Formulators often use micronized or nano-sized TD to cut down on white case and improve spreadability. Smaller particles scatter less visible light so the formula looks less chalky while still filtering UV.
TD is almost always bundled with coatings like Alumina, Silica, Stearic Acid, or Dimethicone. These coatings do two important jobs:
TD can be used at up to 25% in a finished sunscreen; this is the regulatory ceiling in both the US and the EU.
In practice, the amount in any given product varies a lot depending on the target SPF and whether it's paired with other UV filters.
TD is one of the most heavily vetted sunscreen ingredients out there. It is approved as a UV filter in all major markets worldwide, including the US, EU, UK, Japan, Korea, China, Australia, and Canada.
The safety evidence is solid. There was an old worry that nano particles might absorb through skin into the body but multiple studies (including on damaged, sunburned, and UV-irradiated skin) have shown that TD stays on the surface and the layer of dead skin cells on top of everything else.
There's also no evidence of carcinogenicity, mutagenicity, or reproductive toxicity from dermal exposure of this ingredient.
For those who have seen the headline about a 2022 EU ban on TD, that was on TD as a food additive (a complete separate use from topical sunscreen).
There are ongoing questions about how nano-TD might affect marine ecosystems. As of now, there has been no conclusive evidence that any form of TD (or any other sunscreen filter) harms coral reefs or marine life.
The science is still developing and it's a space worth watching rather than packing over.
However, several destinations have reef-safety sunscreen rules that restrict certain chemical filters and steer visitors toward mineral, non-nano options. If you're traveling somewhere with these rules, a non-nano mineral sunscreen is the safe bet.
Learn more about Titanium DioxideWe don't have a description for Tricholoma Matsutake Extract yet.
Triethanolamine (TEA) is an emulsifier and pH adjuster. It is created using ethylene oxide and ammonia. This gives Triethanolamine a nitrogen core and a similar scent to ammonia.
As an emulsifier, it prevents ingredients from separating and enhances texture by adding volume to a product.
PH adjusters are common in cosmetic products. The pH of a product can affect the effectiveness of other ingredients. A product with a high pH may also irritate the skin.
If you are looking for the tea leaf ingredient, click here.
Learn more about TriethanolamineUrea is also called carbamide and is the diamide of carbonic acid. In cosmetics, urea is used to hydrate the skin. It also provides exfoliation in higher concentrations.
As a humectant, urea helps draw moisture from the air and from deep within the skin. This helps hydrate your skin. Studies show urea is an effective moisturizer for dry skin conditions. 40% urea is typical in medications for treating eczema and other skin conditions.
Urea has the strongest exfoliation effect in concentrations higher than 10%. It is a keratolytic agent, meaning it breaks down the keratin protein in the top layer of skin. This helps remove dead skin cells and flaking skin.
In medicine, urea has been shown to help increase the potency of other ingredients, such as fungal treatments.
Humans and animals use urea to metabolize nitrogen-containing compounds. Urea is highly soluble in water. Once dissolved, it is neither acidic nor alkaline.
Urea is actually one of the more well-studied and well-supported ingredients out there if you have eczema.
Clinical trials have shown that urea creams in the 5 - 10% range can:
Higher concentrations (20 -30%) can also help with thickened, scaly patches but is also more likely to sting on active flares.
Skip urea if you have rosacea. The AAD (American Academy of Dermatology) lists it alongside alcohol, menthol, and fragrance as a potential irritant for rosacea-prone skin. Urea's keratolytic and penetration-enhancing properties can trigger stinging, burning, and redness.
As always, your skin is unique, so definitely check in with your dermatologist.
Learn more about UreaWater. 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 WaterXanthan 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 Gum