Peptide Skincare & BeautySkin science and ingredient guides

Ingredient or product comparison

The Ordinary Multi-Peptide Serum for Hair Density Versus Good Molecules Super Peptide Serum

The Ordinary Multi-Peptide Serum for Hair Density Versus Good Molecules Super Peptide Serum Detailed comparison of The Ordinary Multi-Peptide Serum for Hair Density versus Good Molecules Super Peptide Serum. This anti-aging serum is formulated around Acetyl He

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The Ordinary Multi-Peptide Serum for Hair Density Versus Good Molecules Super Peptide Serum Detailed comparison of The Ordinary Multi-Peptide Serum for Hair Density versus Good Molecules Super Peptide Serum. This anti-aging serum is formulated around Acetyl Hexapeptide-8 and Acetyl Octapeptide-3 to soften the look of wrinkles and strengthen the skin barrier. No concerns Water Propanediol Butylene Glycol Glycerin Caffeine Biotinoyl Tripeptide-1 Acetyl Tetrapeptide-3 Larix Europaea Wood Extract Pisum Sativum Extract Scutellaria Baicalensis Root Extract Triticum Vulgare Germ Extract Glycine Soja Germ Extract Trifolium Pratense Flower Extract Camellia Sinensis Leaf Extract Apigenin Oleanolic Acid Arginine Glycine Calcium Gluconate Zinc Chloride Lactic Acid Gluconolactone Dextran Maltodextrin Hydroxyethylcellulose Xanthan Gum Pentylene Glycol Dimethyl Isosorbide Polysorbate 20 PPG-26-Buteth-26 PEG-40 Hydrogenated Castor Oil Trisodium Ethylenediamine Disuccinate Sodium Metabisulfite Sodium Benzoate Phenoxyethanol Chlorphenesin Water, Propanediol, Butylene Glycol, Glycerin, Caffeine, Biotinoyl Tripeptide-1, Acetyl Tetrapeptide-3, Larix Europaea Wood Extract, Pisum Sativum Extract, Scutellaria Baicalensis Root Extract, Triticum Vulgare Germ Extract, Glycine Soja Germ Extract, Trifolium Pratense Flower Extract, Camellia Sinensis Leaf Extract, Apigenin, Oleanolic Acid, Arginine, Glycine, Calcium Gluconate, Zinc Chloride, Lactic Acid, Gluconolactone, Dextran, Maltodextrin, Hydroxyethylcellulose, Xanthan Gum, Pentylene Glycol, Dimethyl Isosorbide, Polysorbate 20, PPG-26-Buteth-26, PEG-40 Hydrogenated Castor Oil, Trisodium Ethylenediamine Disuccinate, Sodium Metabisulfite, Sodium Benzoate, Phenoxyethanol, Chlorphenesin Ammonium Acryloyldimethyltaurate/Vp Copolymer 1,2-Hexanediol Diheptyl Succinate Capryloyl Glycerin/Sebacic Acid Copolymer Ethylhexylglycerin Caprylyl Glycol Acetyl Hexapeptide-8 Acetyl Octapeptide-3 Sodium Hyaluronate Copper Tripeptide-1 Tocopherol Water, Propanediol, Glycerin, Ammonium Acryloyldimethyltaurate/Vp Copolymer, 1,2-Hexanediol, Diheptyl Succinate, Capryloyl Glycerin/Sebacic Acid Copolymer, Glycine, Xanthan Gum, Ethylhexylglycerin, Caprylyl Glycol, Acetyl Hexapeptide-8, Acetyl Octapeptide-3, Sodium Hyaluronate, Copper Tripeptide-1, Tocopherol These ingredients are found in both products. Ingredients higher up in an ingredient list are typically present in a larger amount. 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 3-10% 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. 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. Propanediol 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. 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! Xanthan 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.