Peptide Skincare & BeautySkin science and ingredient guides

Ingredient or product comparison

COSRX The 6 Peptide Skin Booster Serum Versus Skintific 10% Vitamin C Brightening Glow Serum

COSRX The 6 Peptide Skin Booster Serum Versus Skintific 10% Vitamin C Brightening Glow Serum Detailed comparison of COSRX The 6 Peptide Skin Booster Serum versus Skintific 10% Vitamin C Brightening Glow Serum. This anti-aging serum is formulated around Niacina

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COSRX The 6 Peptide Skin Booster Serum Versus Skintific 10% Vitamin C Brightening Glow Serum Detailed comparison of COSRX The 6 Peptide Skin Booster Serum versus Skintific 10% Vitamin C Brightening Glow Serum. This anti-aging serum is formulated around Niacinamide and Acetyl Hexapeptide-8 to soften the look of wrinkles and strengthen the skin barrier. This brightening serum is formulated around Ascorbic Acid and Tranexamic Acid to brighten dull-looking skin and fade the look of dark spots. 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 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 Ascorbic Acid Tranexamic Acid PEG/PPG-17/6 Copolymer Hydroxyacetophenone Bis-PEG-18 Methyl Ether Dimethyl Silane Acrylates/C10-30 Alkyl Acrylate Crosspolymer Citrus Reticulata Fruit Extract Hydrolyzed Sodium Hyaluronate 3-O-Ethyl Ascorbic Acid Aminomethyl Propanol Algin Ergothioneine Ferulic Acid Sodium Acetylated Hyaluronate Sodium Hyaluronate Crosspolymer Citrus Reticulata Peel Extract Nonapeptide-1 Hexapeptide-2 Hexapeptide-9 Oligopeptide-1 Laminaria Digitata Extract Ceramide AP Ceramide As Ceramide Ns Ceramide EOP Ceramide NP Cetyl-Pg Hydroxyethyl Palmitamide Cholesterol PPG-26-Buteth-26 PEG-40 Hydrogenated Castor Oil Pvm/Ma Copolymer Glyceryl Acrylate/Acrylic Acid Copolymer Polysorbate 20 Water, Ascorbic Acid, Butylene Glycol, Glycerin, Tranexamic Acid, Betaine, PEG/PPG-17/6 Copolymer, 1,2-Hexanediol, Hydroxyacetophenone, Bis-PEG-18 Methyl Ether Dimethyl Silane, Acrylates/C10-30 Alkyl Acrylate Crosspolymer, Tocopherol, Citrus Reticulata Fruit Extract, Hydrolyzed Sodium Hyaluronate, 3-O-Ethyl Ascorbic Acid, Aminomethyl Propanol, Algin, Pentylene Glycol, Sodium Hyaluronate, Ergothioneine, Ferulic Acid, Sodium Acetylated Hyaluronate, Sodium Hyaluronate Crosspolymer, Citrus Reticulata Peel Extract, Nonapeptide-1, Hexapeptide-2, Hexapeptide-9, Oligopeptide-1, Laminaria Digitata Extract, Ceramide AP, Ceramide As, Ceramide Ns, Ceramide EOP, Ceramide NP, Cetyl-Pg Hydroxyethyl Palmitamide, Hydrogenated Lecithin, Cholesterol, Allantoin, PPG-26-Buteth-26, PEG-40 Hydrogenated Castor Oil, Pvm/Ma Copolymer, Glyceryl Acrylate/Acrylic Acid Copolymer, Polysorbate 20, Ethylhexy 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. Betaine is a humectant. Like hyaluronic acid, it helps attract and retain moisture in the skin. It’s known for being gentle and for helping the skin maintain balanced hydration. Betaine is mainly used to improve hydration and support calmer skin. It helps skin cells regulate water balance because it functions as an osmolyte. Some studies suggest betaine may support making skin tone more even. Fun fact: Betaine naturally exists in the skin and the body. In cosmetic products, it can be either plant-derived (most commonly from sugar beets) or synthetically produced for consistency and stability. Betaine is also known as trimethylglycine. 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. 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 p