Peptide Skincare & BeautySkin science and ingredient guides

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Dermalogica Biolumin C Serum Versus Medik8 Liquid Peptides

Dermalogica Biolumin C Serum Versus Medik8 Liquid Peptides Detailed comparison of Dermalogica Biolumin C Serum versus Medik8 Liquid Peptides. This brightening serum is formulated around Lactic Acid and Palmitoyl Tripeptide-5 to brighten dull-looking skin and s

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Dermalogica Biolumin C Serum Versus Medik8 Liquid Peptides Detailed comparison of Dermalogica Biolumin C Serum versus Medik8 Liquid Peptides. This brightening serum is formulated around Lactic Acid and Palmitoyl Tripeptide-5 to brighten dull-looking skin and soften the look of wrinkles. This anti-aging serum is formulated around Carnosine and Palmitoyl Tripeptide-5 to soften the look of wrinkles and refine skin texture. Water Glycerin Butylene Glycol Ethoxydiglycol Lactic Acid Salvia Hispanica Seed Extract Sodium PCA Palmitoyl Tripeptide-5 Sophora Japonica Flower Extract Ascorbyl Methylsilanol Pectinate Sodium Hyaluronate Tocopherol Dipotassium Glycyrrhizate Aminopropyl Ascorbyl Phosphate Trehalose Polyacrylate-13 Propanediol Citrus Grandis Peel Oil Helianthus Annuus Seed Oil Polyisobutene Methylpropanediol Carrageenan Pentylene Glycol Glyceryl Polyacrylate Caprylyl Glycol Ethylhexylglycerin Tetrasodium Glutamate Diacetate Xanthan Gum Polysorbate 20 Limonene Sodium Hydroxide Phenoxyethanol Water, Glycerin, Butylene Glycol, Ethoxydiglycol, Lactic Acid, Salvia Hispanica Seed Extract, Sodium PCA, Palmitoyl Tripeptide-5, Sophora Japonica Flower Extract, Ascorbyl Methylsilanol Pectinate, Sodium Hyaluronate, Tocopherol, Dipotassium Glycyrrhizate, Aminopropyl Ascorbyl Phosphate, Trehalose, Polyacrylate-13, Propanediol, Citrus Grandis Peel Oil, Helianthus Annuus Seed Oil, Polyisobutene, Methylpropanediol, Carrageenan, Pentylene Glycol, Glyceryl Polyacrylate, Caprylyl Glycol, Ethylhexylglycerin, Tetrasodium Glutamate Diacetate, Xanthan Gum, Polysorbate 20, Limonene, Sodium Hydroxide, Phenoxyethanol Inulin Panthenol Alpha-Glucan Oligosaccharide Carnosine Carbomer Hydroxypropyl Cyclodextrin Dunaliella Salina Extract Citric Acid Sodium Benzoate Acetyl Hexapeptide-8 Tetrapeptide-21 Pentapeptide-18 Palmitoyl Tripeptide-1 Pantolactone Palmitoyl Tripeptide-38 Palmitoyl Tetrapeptide-7 Glyceryl Caprylate Lactic Acid/Glycolic Acid Copolymer Polyvinyl Alcohol Phenylpropanol Copper Palmitoyl Heptapeptide-14 Heptapeptide-15 Palmitate Potassium Sorbate Water, Glycerin, Butylene Glycol, Inulin, Sodium Hyaluronate, Panthenol, Alpha-Glucan Oligosaccharide, Carnosine, Carbomer, Polysorbate 20, Caprylyl Glycol, Phenoxyethanol, Hydroxypropyl Cyclodextrin, Dunaliella Salina Extract, Ethylhexylglycerin, Citric Acid, Palmitoyl Tripeptide-5, Sodium Benzoate, Acetyl Hexapeptide-8, Tetrapeptide-21, Pentapeptide-18, Palmitoyl Tripeptide-1, Pantolactone, Palmitoyl Tripeptide-38, Palmitoyl Tetrapeptide-7, Glyceryl Caprylate, Lactic Acid/Glycolic Acid Copolymer, Polyvinyl Alcohol, Phenylpropanol, Copper Palmitoyl Heptapeptide-14, Heptapeptide-15 Palmitate, Potassium Sorbate, Xanthan Gum These ingredients are found in both products. Ingredients higher up in an ingredient list are typically present in a larger amount. 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). 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. 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. Palmitoyl Tripeptide-5 is a synthetic signal lipopeptide. This just means it is a three amino acid chain bolted onto a palmitic acid tail so it can slip through the skin's lipid barrier. This peptide has a "build more, lose less" approach. It's designed to mimic the collagen-stimulating activity in your skin by copying a snippet of one of your skin's own matrix proteins. This nudges fibroblasts into making more collagen while inhibiting the enzyme that breaks down skin protein. The manufacturer's in vivo study of 45 volunteers found 1% and 2.5% reduced the appearance of wrinkles by 7% and 12% respectively, after using it twice daily for 84 days. This is in the expected range for peptides; they're slow and cumulative actives and not overnight fixers. Typic