Kundal Protein Bonding Care No Wash Treatment
A leave-in treatment with 62 ingredients, including hyaluronic acid.
Overview
What it is
Leave-in treatment with 62 ingredients that contains hyaluronic acid
Cool Features
It is cruelty-free and reef safe
Suited For
It has ingredients that are good for anti aging, dry skin, sensitive skin and scar healing
Free From
It doesn't contain any parabens or sulfates
Fun facts
Kundal is from South Korea.
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
Cyclopentasiloxane
EmollientWater
Skin ConditioningButylene Glycol
HumectantDimethiconol
EmollientCetyl Alcohol
EmollientGlycerin
HumectantBehentrimonium Chloride
PreservativeStearyl Alcohol
EmollientCetrimonium Chloride
AntimicrobialIsopropyl Alcohol
SolventMyristyl Alcohol
EmollientRosa Centifolia Flower Extract
AstringentCaprylyl Glycol
EmollientLauryl Alcohol
Emollient1,2-Hexanediol
Skin ConditioningMaltodextrin
AbsorbentHibiscus Sabdariffa Flower Extract
Skin ConditioningTulipa Gesneriana Flower Extract
Skin ConditioningChlorella Ferment
Skin ConditioningPrunus Amygdalus Dulcis Oil
Skin ConditioningPistacia Vera Seed Oil
Skin ConditioningGardenia Taitensis Flower Extract
Skin ConditioningAleurites Moluccanus Seed Oil
Skin ConditioningMacadamia Ternifolia Seed Oil
EmollientSclerocarya Birrea Seed Oil
HumectantPropanediol
SolventPolysorbate 20
EmulsifyingCitric Acid
BufferingSodium Citrate
BufferingHydrolyzed Soy Protein
HumectantHydrolyzed Corn Protein
Skin ConditioningHydrolyzed Wheat Protein
Skin ConditioningGlycine
BufferingSerine
MaskingGlutamic Acid
HumectantBenzyl Glycol
SolventAspartic Acid
MaskingLeucine
Skin ConditioningHydrolyzed Glycosaminoglycans
HumectantSodium Hyaluronate
HumectantAlanine
MaskingLysine
Skin ConditioningArginine
MaskingTyrosine
MaskingPhenylalanine
MaskingProline
Skin ConditioningThreonine
Valine
MaskingIsoleucine
Skin ConditioningEthylhexylglycerin
Skin ConditioningHistidine
HumectantCysteine
AntioxidantMethionine
Skin ConditioningSodium Hyaluronate Crosspolymer
HumectantHydrolyzed Hyaluronic Acid
HumectantHydroxypropyltrimonium Hyaluronate
Hyaluronic Acid
HumectantSodium Acetylated Hyaluronate
HumectantDisodium EDTA
Hydroxyacetophenone
AntioxidantChlorphenesin
AntimicrobialParfum
MaskingCyclopentasiloxane, Water, Butylene Glycol, Dimethiconol, Cetyl Alcohol, Glycerin, Behentrimonium Chloride, Stearyl Alcohol, Cetrimonium Chloride, Isopropyl Alcohol, Myristyl Alcohol, Rosa Centifolia Flower Extract, Caprylyl Glycol, Lauryl Alcohol, 1,2-Hexanediol, Maltodextrin, Hibiscus Sabdariffa Flower Extract, Tulipa Gesneriana Flower Extract, Chlorella Ferment, Prunus Amygdalus Dulcis Oil, Pistacia Vera Seed Oil, Gardenia Taitensis Flower Extract, Aleurites Moluccanus Seed Oil, Macadamia Ternifolia Seed Oil, Sclerocarya Birrea Seed Oil, Propanediol, Polysorbate 20, Citric Acid, Sodium Citrate, Hydrolyzed Soy Protein, Hydrolyzed Corn Protein, Hydrolyzed Wheat Protein, Glycine, Serine, Glutamic Acid, Benzyl Glycol, Aspartic Acid, Leucine, Hydrolyzed Glycosaminoglycans, Sodium Hyaluronate, Alanine, Lysine, Arginine, Tyrosine, Phenylalanine, Proline, Threonine, Valine, Isoleucine, Ethylhexylglycerin, Histidine, Cysteine, Methionine, Sodium Hyaluronate Crosspolymer, Hydrolyzed Hyaluronic Acid, Hydroxypropyltrimonium Hyaluronate, Hyaluronic Acid, Sodium Acetylated Hyaluronate, Disodium EDTA, Hydroxyacetophenone, Chlorphenesin, Parfum
Key Ingredients
Benefits
Concerns
Ingredients Explained
Cyclopentasiloxane, or D5, is a silicone used to improve texture of products and trap moisture.
D5 is considered lightweight and volatile. Volatile means it evaporates quickly after application. Once evaporated, D5 leaves a thin barrier that helps keep skin hydrated.
It is also an emollient. Emollients help soften the skin and prevent water loss. Silicones create a silky texture in products. D5 helps other ingredients become more spreadable.
Studies show D5 is safe to use in skincare products. We recommend speaking with a skincare professional if you have concerns.
Learn more about CyclopentasiloxaneWater. 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 WaterButylene 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 GlycolDimethiconol is a silicone that resembles the popular dimethicone. Like other silicones, it is an emollient. Emollients create a thin film on skin to prevent moisture from escaping.
This ingredient helps to create a silky texture and improve spreadability. Due to its high molecular weight and thickness, it is often combined with cyclopentasiloxane.
Cetyl Alcohol is a fatty alcohol. Fatty Alcohols are most often used as an emollient or to thicken a product.
Its main roles are:
Though it has "alcohol" in the name, it is not related to denatured alcohol or ethyl alcohol.
The FDA allows products labeled "alcohol-free" to have fatty alcohols.
Learn more about Cetyl AlcoholGlycerin (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 GlycerinThis ingredient is a preservative and often used for it's anti-static properties. You'll most likely see this ingredient in hair conditioners.
It does not cause irritation or sensitization in leave-on products at 1-5%.
Stearyl Alcohol is a type of fatty alcohol from stearic acid. It is a white, waxy compound used to emulsify ingredients used as an emollient or to thicken a product.
Emollients help soothe and hydrate the skin by trapping moisture.
Fatty alcohols are usually derived from natural fats and oils and therefore do not have the same drying or irritating effect as solvent (ethanol) alcohols.
The FDA allows products labeled "alcohol-free" to have fatty alcohols.
Learn more about Stearyl AlcoholThis ingredient is a preservative, antimicrobial, and emulsifier. It is often used in cosmetics for its ability to cleanse, condition, and reduce static.
Cetrimonium chloride is a quaternary ammonium salt, meaning it has a water-soluble structure.
Isopropyl Alcohol is more commonly known as rubbing alcohol. It is most commonly used as a solvent, meaning it helps other ingredients dissolve.
This ingredient is an astringent alcohol. Astringent alcohols may also irritate skin as they high amounts may strip away your skin's natural oils.
Other types of astringent alcohols include:
According to the National Rosacea Society based in the US, you should be mindful of products with these alcohols in the top half of ingredients.
Any type of sanitizing product will have high amounts of alcohol to help kill bacteria and viruses.
Learn more about Isopropyl AlcoholMyristyl Alcohol is type of fatty alcohol. Fatty Alcohols are most often used as an emollient or to thicken a product.
As an emollient, myristyl alcohol hydrates the skin by trapping moisture in.
Fatty alcohols are usually derived from natural fats and oils and therefore do not have the same drying or irritating effect as solvent alcohols.
The FDA allows "alcohol-free" products to contain fatty alcohols.
Learn more about Myristyl AlcoholThis extract comes from Rosa centifolia petals and flowers. It has astringent, masking, skin conditioning, and tonic properties.
The compounds in this ingredient can give skin a toning feel, which is why it's sometimes described as a mild astringent. It's often described as a tonic because rose ingredients have long been used in facial waters and toners for refreshing the skin.
Rosa centifolia has a natural floral scent that can mask or soften unpleasant odors from other ingredients.
Like other botanical extracts, people with very fragrance-sensitive skin may prefer to patch test.
Learn more about Rosa Centifolia Flower ExtractCaprylyl 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 or alcohol, this ingredient is fungal acne safe (there's nothing for Malassezia to feed on).
Learn more about Caprylyl GlycolLauryl Alcohol is a type of fatty alcohol. It is derived from palm kernel oil or coconut oil.
Fatty alcohols are not the same as drying, volatile alcohols like alcohol denatured or ethanol; they're designed to be non-sensitizing and hydrating.
Lauryl alcohol pulls triple duty:
Because lauryl alcohol falls within the C11 - C24 carbon chain range that the Malassezia yeast (fungal acne) can metabolize, this ingredient may not be fungal acne safe.
Learn more about Lauryl Alcohol1,2-Hexanediol is a synthetic liquid and another multi-functional powerhouse.
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 preservatives
Maltodextrin is a polysaccharide. It is derived from starch such as rice, corn, wheat, or potato starch.
In food, Maltodextrin is used to improve the texture and thicken a product. Due to its structure, it can help create a gel texture. As an emulsion stabilizer, it helps keep the ingredients in a product together.
As a polysaccharide, Maltodextrin has moisturizing properties. Polysaccharides are a type of carbohydrate. The top layer of skin uses polysaccharides to retain water, keeping the skin hydrated.
Maltodextrin is water soluble and has a sweet taste.
Learn more about MaltodextrinThis extract comes from the Roselle flower, or Hibiscus Sabdariffa. Roselle flowers are rich in antioxidants.
Studies found the antioxidants in Roselle flowers to potentially help reduce UV-B damage.
We don't have a description for Tulipa Gesneriana Flower Extract yet.
Chlorella Ferment isn't fungal acne safe.
Prunus Amygdalus Dulcis Oil comes from the sweet almond, a tree native to Iran. This oil has no fragrance and is non-volatile.
Almonds contain healthy fats, vitamins, and minerals. It is a rich source of Vitamin E, a great antioxidant and skin conditioning ingredient. Sweet almond oil contains fatty acids such as linolenic acid and triglycerides.
The content of sweet almond oil makes it a great emollient; it can help soften and hydrate your skin. Emollients create a barrier over your skin to trap moisture in. Sweet almond oil has antioxidant properties.
Those with an almond allergy should be careful of this ingredient and speak with a professional about using it in your skincare.
This ingredient may not be fungal-acne safe.
Learn more about Prunus Amygdalus Dulcis OilThis ingredient is also known as pistachio seed oil.
We don't have a description for Gardenia Taitensis Flower Extract yet.
Aleurites Moluccanus Seed Oil is oil from the Kukui nut and native to Hawaii.
Aleurites Moluccanus Seed Oil helps soften the skin as an emollient. It also provides antioxidants. Antioxidants help fight free-radicals. Free-radicals are molecules that may damage your skin cells, such as pollution.
Aleurites Moluccanus Seed Oil can also help soothe the skin.
This nut has been used by many cultures for curing illnesses, such as headache and fever.
Learn more about Aleurites Moluccanus Seed OilMacadamia Ternifolia Seed Oil is the fixed oil obtained from Macadamia nut native to Australia. Due to its similarity with our skin's natural oils, macadamia oil absorbs easily without feeling greasy.
Macadamia seed oil is rich in fatty acids, including oleic acid (45-75%), palmitoleic acid (7-33%), and palmitic acid (6-12%). They also contain various B vitamins, iron, and magnesium.
Palmitoleic acid helps calm inflammation and supports wound healing while oleic acid helps hydrate the skin.
Due to the high amounts of palmitic and oleic acid, this ingredient may not be fungal acne safe. These are fatty acids that Malassezia yeast can feed on (C11-C24 chain length). If you're prone to fungal acne, this one's probably not for you.
You'll also see this ingredient listed as: Macadamia Integrifolia Seed Oil . This is the same ingredient; M. ternifolia is an older INCI naming convention for the edible macadamia nut, while M. integrifolia is the species actually cultivated for oil production. Both names refer to the same oil.
Learn more about Macadamia Ternifolia Seed OilSclerocarya Birrea Seed Oil is the oil expressed from the seeds of the Marula plant. In South Africa, Marula is called "an elephant's favorite treat".
Marula seed oil is a non-fragrant oil. It is rich in fatty acids, such as oleic, linoleic, palmitic, stearic, and more. These fatty acids help hydrate the skin.
Other components of marula seed oil include vitamin E and antioxidants such as flavonoids.
Due to the fatty acid content, this ingredient may not be fungal-acne safe.
Learn more about Sclerocarya Birrea Seed OilPropanediol is an all-star ingredient. It softens, hydrates, and smooths the skin.
It’s 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 PropanediolPolysorbate 20 is a gentle, water-soluble emulsifier and mild surfactant. It stops oil and water from separating to keep your formulas blended and stable.
It also acts as a mild penetration enhancer by helping active ingredients absorb slightly better.
The common safety discussion around this ingredient involves a manufacturing byproduct called 1,4-dioxane.
Trace amounts can form during production but the EU's Scientific Committee on Consumer Safety has concluded that levels at/below 10 ppm in finished products are safe (commercial products consistently fall within acceptable margins).
True allergic reactions are uncommon and the CIR Expert Panel has confirmed this ingredient to be safe as used in cosmetics.
Because it is derived from lauric acid, it may not be fungal acne safe.
Learn more about Polysorbate 20Citric 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 AcidSodium Citrate is the sodium salts of citric acid. In skincare, it is used to alter pH levels and acts as a preservative.
Its main functions are to maintain the pH of a product and neutralize metal ions.
The acidity of our skin is maintained by our glands and skin biome; normal pH level of skin is slightly acidic (~4.75-5.5).
Being slightly acidic allows our skin to create an "acid mantle". This acid mantle is a thin barrier that protects our skin from bacteria and contaminants.
Learn more about Sodium CitrateHydrolyzed Soy Protein is a vegan protein made to mimic hydrolyzed collagen. It is created from soy, or glycine soja.
This ingredient is a humectant, meaning it helps hydrate the skin by binding to water. According to a manufacturer, it is also a great hair conditioner.
Read more about hydrolyzed collagen here.
Learn more about Hydrolyzed Soy ProteinWe don't have a description for Hydrolyzed Corn Protein yet.
This ingredient is a plant-derived protein made by breaking down wheat proteins into smaller amino acids and peptides. It has skin and hair conditioning properties.
People with known wheat allergy or a history of immediate reactions should be cautious with leave-on products containing hydrolyzed wheat proteins.
Glycine 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.
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 SerineGlutamic Acid is an amino acid that is found in all living organisms. Our bodies use this to help nerve cells in the brain communicate with other cells.
In cosmetics, glutamic acid is a famous humectant. It draws water from the air to your skin, keeping your skin hydrated (like hyaluronic acid).
An in-vitro study from 2024 found glutamic acid to play a role in inhibiting inflammation and thus a potential skin-soothing ingredient.
Other studies show it to be have potential wound healing, skin barrier repair, and hair growth properties.
Glutamic acid has poor solubility in water and other solvents.
Learn more about Glutamic AcidWe don't have a description for Benzyl Glycol yet.
Aspartic Acid is an amino acid that our bodies produce naturally. It is an antioxidant.
Our body uses Aspartic Acid to help build collagen and elastin. It also plays a role in hydrating skin.
We don't have a description for Leucine yet.
We don't have a description for Hydrolyzed Glycosaminoglycans 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 HyaluronateAlanine is an amino acid and is already found in the human body. Our skin uses alanine to build collagen, elastin, and keratin.
Lysine is an essential amino acid (your body cannot make it on its own). It has skin conditioning properties and one of the key players in collagen synthesis.
When your body creates collagen, lysine is basically the glue that holds everything together. It helps collagen fibers lock into each other and stay strong, with vitamin C being its trusty sidekick. Without enough lysine, this glue gets flimsy and less firm, resulting in less bouncy skin.
In skincare, lysine is mostly there to help keep your skin moisturized. It carries water through your skin's layers so everything stays plump.
So will putting lysine on your face create bouncier skin?
It's hard to say; most of the exciting collagen research on lysine comes from oral supplements or lab studies on mice. Further research is needed to truly understand what role topical lysine plays in skincare and your skin.
However, there's no harm in adding lysine to your routine as a supportive and hydrating ingredient.
Learn more about LysineArginine is a semi-essential amino acid. This just means our bodies can product a bit on its own, but sometimes needs a little boost from food sources.
It is a part of 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.
Here's an interesting thing about Arginine: your skin converts it into urea through the Krebs-Henseleit urea cycle. Urea is one of the most effective humectants your skin naturally produces.
A clinical study showed applying 2.5% arginine hydrochloride to atopic dermatitis skin showed significant urea levels in the stratum corneum and improved moisture in just four weeks.
Arginine is also a precursor to nitric oxide; nitric oxide improves microcirculation and supports wound healing and collagen synthesis.
One study found that an amino acid complex containing Arginine reduced skin irritation, improved hydration, and accelerated skin repair in clinical / in-vivo studies.
Arginine itself is an amino acid and not a fatty acid, oil, or ester. On its own, it's not a direct food source for Malassezia, or the yeast that causes fungal acne.
Learn more about ArginineTyrosine is one of the amino acids used to create protein. It plays a role in melanin production.
A study from 2012 found tyrosine to show promising results in restoring skin volume.
Phenylalanine is an amino acid. It is a skin soothing and hydrating ingredient. Amino acids play a crucial role in wound healing and skin hydration.
This ingredient is also used to help even out skin tone due to its ability to disrupt the melanin production process.
Two structures of phenylalanine exist: L-phenylalanine and D-phenylalanine. L-phenylalanine is essential, this means our bodies cannot produce it naturally and we must get it from foods. Our bodies convert D-phenylalanine to neurotransmitters, and D-phenylalanine is found in our bodies naturally.
Some foods that contain L-phenylalanine include eggs, soybeans, beef, milk.
Learn more about PhenylalanineProline is a non-essential amino acid, meaning your body can make it on its own. In skincare, it is a skin conditioning ingredient that keeps skin soft and hydrated.
It makes up about 23% of the collagen molecule (collagen is the protein responsible for keeping your skin firm) and is involved in your skin's natural hyaluronic acid production. When applied topically, proline can penetrate the skin fairly well due to its small molecular size.
Reviews of this ingredient have found it to be neither a dermal irritant nor a sensitizer.
Fun fact: Proline can be found in protein-rich foods like meat, fish, eggs, and dairy.
Learn more about ProlineThreonine is an amino-acid. It helps hydrate the skin and has antioxidant benefits.
Our skin uses threonine for creating collagen and elastin. Humans are not able to create threonine and must get it through eating foods such as fish, lentils, poultry, sesame seeds, and more.
Valine is an essential amino acid. It is used by our bodies for tissue repair and muscle growth.
An essential amino acid is one in which our bodies cannot naturally produce so we must get them through diet. Foods such as eggs, dairy, red meat, and fish contain valine.
This ingredient can either be derived from an animal product or be synthetically created.
Learn more about ValineIsoleucine is an amino acid that helps reinforce our skin barrier. This amino acid plays a role in creating protein for the body.
Fun fact: Isoleucine is found in meat, fish, dairy, legumes, and nuts.
Ethylhexylglycerin 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 EthylhexylglycerinHistidine is a semi-essential amino acid used by our bodies to create protein. It has humectant and skin conditioning properties.
Our bodies use histidine to create filaggrin - filaggrin is a structural protein that the skin uses in maintaining skin barrier.
One study found histidine and carnosine to be a dynamic duo for your skin:
Oral histidine has also been found to help with filaggrin-deficit skin disorders such as atopic dermatitis.
Why is it considered a semi-essential amino acid? This is because adults are able to create it but children must get it from their diet.
Learn more about HistidineCysteine is an amino acid found in our bodies. It becomes an antioxidant when converted into gluthatione.
Once it becomes gluthatione, it prevents oxidative damage to parts of our cell. Gluthatione has also been shown to protect our skin from UV-B induced damage.
Methionine is an essential amino acid. It is a conditioning agent and commonly found in both skin and hair products.
This amino acid is a precursor to glutathione, a powerful antioxidant.
Fun fact: Methionine can be found in meat, fish, and dairy. It cannot be naturally produce and requires dietary intake.
Learn more about MethionineSodium Hyaluronate Crosspolymer is a crosslinked version of sodium hyaluronate. This just means it's linked into a 3D mesh network that lets it be more stable and sit on skin as a cohesive, gel-like film rather than sinking into skin.
A 2016 human skin study found crosslinked HA increased epidermal water content by 7.6% over the control group and reduced transepidermal water loss by 27.8%.
A follow-up clinical trial found that a topical crosslinked HA serum applied after fillers, microneedling, or chemical peels was well-tolerated and enhanced skin quality at 14 / 28 days.
More recent research suggests that concentrations as low as 0.03% can act as a penetration enhancer for other skincare actives.
Learn more about Sodium Hyaluronate CrosspolymerHydrolyzed Hyaluronic Acid is hyaluronic acid (HA) that is broken down into lower molecular weight fragments.
It's a humectant that pulls and holds water in the skin to help with hydration, plumpness, and reduce transepidermal water loss.
Because hydrolyzed hyaluronic acid is smaller in size, it can slip past your outermost layer of skin more easily than full-sized HA.
Most formulations will combine all sizes to get the best of both worlds.
Typical usage levels range from 0.01-1%. Any percentage higher than 2% might become goopy and tacky.
Learn more about Hydrolyzed Hyaluronic AcidThis form of hyaluronic acid is produced through fermentation.
According to a manufacturer, it has a positive charge by ionic binding to help moisturize and give hair a smooth feel. This is why you'll find this ingredient in shampoos and body washes.
Hyaluronic acid (HA) is a glycosaminoglycan (basically a long sugar chain) that your skin already makes on its own. In your skin, HA lives in the extracellular matrix and acts as the body's moisture reservoir.
Topically, HA is a humectant that binds water and helps skin look more plump, smooth, and hydrated.
The only catch is that HA isn't a single thing; it actually comes in a wide range of molecular weights (~50 - 2,000+ kDA) and size matters.
Some clinical evidence links low molecular weight versions to improved wrinkle depth, elasticity, anti-inflammatory effects, and barrier repair.
This is why the best HA serums blend the two sizes together so you get the best of both worlds.
The majority of cosmetic HA is produced by bacterial fermentation, typically using Streptococcus or Bacillus strains. Typical use levels in skincare sit around 0.1-2%.
A clinical study using a 0.2% low-molecular weight HA gel showed improvement in facial seborrheic dermatitis with excellent tolerance.
These are some other common types of Hyaluronic Acid:
Learn more about Hyaluronic AcidSodium Acetylated Hyaluronate is a type of Hyaluronic Acid.
Hyaluronic Acids help moisturize, soothe, and protect the skin.
Read about common types of Hyaluronic Acid here:
Learn more about Sodium Acetylated HyaluronateDisodium EDTA is a chelating agent. It grabs onto and deactivates metal ions that sneak into your products from water, packaging, or air.
This ingredient mainly works behind the scenes and helps with:
On top of that, this ingredient can counteract the effects of hard water by binding to the minerals in it.
One thing worth knowing is that Disodium EDTA has been shown to be a mild penetration enhancer. It can help other ingredients absorb into skin more effectively which can be a double-edged sword (great for actives, but can also make the active too strong if you have sensitive skin).
Clinical patch testing showed no significant skin irritation at typical use concentrations and minimal dermal absorption.
You'll most likely see this ingredient near the end of an ingredient list. It's typically found in concentrations less than 1%.
Learn more about Disodium EDTAHydroxyacetophenone is antioxidant with skin conditioning and soothing properties. It also boosts the efficiency of preservatives.
Though naturally occuring in Norwegian spruce needles, this ingredient is usually synthetically created.
This ingredient is not irritating or sensitizing. Recent research also suggests it may have skin-brightening effects through tyrosinase inhibition.
Learn more about HydroxyacetophenoneChlorphenesin 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 ChlorphenesinParfum 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 “FRAGRANCE” or “PARFUM” 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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Read more about us· Updated June 14, 2025 • Added by verenski