Peptide Skincare & BeautySkin science and ingredient guides

Ingredient or product comparison

Ilia Base Face Milk Versus COSRX The 6 Peptide Skin Booster Serum

Ilia Base Face Milk Versus COSRX The 6 Peptide Skin Booster Serum Detailed comparison of Ilia Base Face Milk versus COSRX The 6 Peptide Skin Booster Serum. This hydrating essence is formulated around Squalane and Argania Spinosa Kernel Oil to hydrate skin and

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Ilia Base Face Milk Versus COSRX The 6 Peptide Skin Booster Serum Detailed comparison of Ilia Base Face Milk versus COSRX The 6 Peptide Skin Booster Serum. This hydrating essence is formulated around Squalane and Argania Spinosa Kernel Oil to hydrate skin and strengthen the skin barrier. This anti-aging serum is formulated around Niacinamide and Acetyl Hexapeptide-8 to soften the look of wrinkles and strengthen the skin barrier. Water Propanediol Caprylic/Capric Glycerides Squalane Butylene Glycol Glycerin Argania Spinosa Kernel Oil 1,2-Hexanediol Hydroxyethyl Acrylate/Sodium Acryloyldimethyl Taurate Copolymer Hydroxyacetophenone Isohexadecane Allantoin Linoleic Acid Phospholipids Phytosterols Caprylyl Glycol Polyglyceryl-10 Stearate Hydrolyzed Opuntia Ficus-Indica Flower Extract Polysorbate 60 Sorbitan Isostearate Hyaluronic Acid Hydrolyzed Hyaluronic Acid Sodium Hyaluronate Chlorella Vulgaris Extract Lactic Acid Water, Propanediol, Caprylic/Capric Glycerides, Squalane, Butylene Glycol, Glycerin, Argania Spinosa Kernel Oil, 1,2-Hexanediol, Hydroxyethyl Acrylate/Sodium Acryloyldimethyl Taurate Copolymer, Hydroxyacetophenone, Isohexadecane, Allantoin, Linoleic Acid, Phospholipids, Phytosterols, Caprylyl Glycol, Polyglyceryl-10 Stearate, Hydrolyzed Opuntia Ficus-Indica Flower Extract, Polysorbate 60, Sorbitan Isostearate, Hyaluronic Acid, Hydrolyzed Hyaluronic Acid, Sodium Hyaluronate, Chlorella Vulgaris Extract, Lactic Acid Dipropylene Glycol Pentylene Glycol Niacinamide Acetyl Hexapeptide-8 Copper Tripeptide-1 Sh-Polypeptide-121 Dipeptide Diaminobutyroyl Benzylamide Diacetate Oligopeptide-68 Palmitoyl Tripeptide-8 Acetyl Glucosamine Serine Alanine Glycine Threonine Arginine Proline Betaine Sodium PCA Sodium Lactate PCA Glutamic Acid Lysine Hcl Tocopherol Dextran Glycine Soja Oil Hydrogenated Lecithin Ammonium Acryloyldimethyltaurate/Vp Copolymer Polyacrylate Crosspolymer-6 Xanthan Gum Ethylhexylglycerin Adenosine Polyquaternium-51 Disodium EDTA Citric Acid T-Butyl Alcohol Potassium Sorbate Sodium Oleate Water, Dipropylene Glycol, Glycerin, Pentylene Glycol, 1,2-Hexanediol, Niacinamide, Acetyl Hexapeptide-8, Copper Tripeptide-1, Sh-Polypeptide-121, Dipeptide Diaminobutyroyl Benzylamide Diacetate, Oligopeptide-68, Palmitoyl Tripeptide-8, Allantoin, Sodium Hyaluronate, Acetyl Glucosamine, Serine, Alanine, Glycine, Threonine, Arginine, Proline, Betaine, Sodium PCA, Sodium Lactate, PCA, Glutamic Acid, Lysine Hcl, Tocopherol, Dextran, Glycine Soja Oil, Hydrogenated Lecithin, Ammonium Acryloyldimethyltaurate/Vp Copolymer, Polyacrylate Crosspolymer-6, Butylene Glycol, Xanthan Gum, Ethylhexylglycerin, Adenosine, Polyquaternium-51, Disodium EDTA, Citric Acid, Caprylyl Glycol, T-Butyl Alcohol, Potassium Sorbate, Sodium Oleate These ingredients are found in both products. Ingredients higher up in an ingredient list are typically present in a larger amount. 1,2-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 Allantoin is a soothing ingredient known for its protective and moisturizing properties; it's basically a quiet workhorse ingredient you can find in a huge range of cosmetics. Though it can be derived from the comfrey plant, allantoin is produced synthetically for cosmetic products to ensure purity. Research shows it can encourage your skin cells to turn over and renew by stimulating keratinocyte and fibroblast proliferation. It also has mild keratolytic properties to help loosen and shed dead skin cells without being harsh. Studies also suggest allantoin can help calm inflammation by dialing down some of the chemical signals your skin sends out when it is irritated. This ingredient is typically used in the 0.1-0.5% range, and the FDA recognizes it as a skin protectant in OTC products up to 2%. Overall, allantoin is a wonderful addition to most routines; it is stable across a wide pH range (~4-8), works well with other ingredients, and is considered non-sensitizing/non-irritating. Fun fact: Allantoin is naturally occurring in comfrey root, beets, chamomile, and wheat sprouts. Our bodies even produce it as a byproduct of uric acid metabolism. 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. Caprylyl 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). Glycerin (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-