Peptide Skincare & BeautySkin science and ingredient guides

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Medik8 Liquid Peptides (2021)

Medik8 Liquid Peptides (2021) Medik8 Liquid Peptides (2021) ingredients explained: Aqua (Water), Glycerin, Butylene Glycol, Inulin, Sodium Hyaluronate, Panthenol, Alpha-Glucan Oligosaccharide, Carnosine, Carbomer, Polysorbate 20, Caprylyl Glycol, Phenoxyethano

Medik8 Liquid Peptides (2021) Medik8 Liquid Peptides (2021) ingredients explained: Aqua (Water), Glycerin, Butylene Glycol, Inulin, Sodium Hyaluronate, Panthenol, Alpha-Glucan Oligosaccharide, Carnosine, Carbomer, Polysorbate 20, Caprylyl Glycol, Phenoxyethanol, Hydroxypropyl Cyclodextrin, Dunaliella Salina (Green Algae) 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 Show all ingredients by function Aqua (Water) solvent Glycerin skin-identical ingredient, moisturizer/​humectant 0, 0 superstar Butylene Glycol moisturizer/​humectant, solvent 0, 1 Inulin goodie Sodium Hyaluronate Panthenol soothing, moisturizer/​humectant Alpha-Glucan Oligosaccharide Carnosine antioxidant, cell-communicating ingredient Carbomer viscosity controlling Polysorbate 20 emulsifying, surfactant/​cleansing Caprylyl Glycol moisturizer/​humectant, emollient Phenoxyethanol preservative Hydroxypropyl Cyclodextrin Dunaliella Salina (Green Algae) Extract Ethylhexylglycerin Citric Acid buffering Palmitoyl Tripeptide-5 cell-communicating ingredient Sodium Benzoate Acetyl Hexapeptide-8 cell-communicating ingredient, moisturizer/​humectant Tetrapeptide-21 Pentapeptide-18 Palmitoyl Tripeptide-1 Pantolactone moisturizer/​humectant Palmitoyl Tripeptide-38 Palmitoyl Tetrapeptide-7 Glyceryl Caprylate Lactic Acid/Glycolic Acid Copolymer Polyvinyl Alcohol Phenylpropanol perfuming, solvent Copper Palmitoyl Heptapeptide-14 Heptapeptide-15 Palmitate Potassium Sorbate Xanthan Gum Good old water, aka H2O. The most common skincare ingredient of all. You can usually find it right in the very first spot of the ingredient list, meaning it’s the biggest thing out of all the stuff that makes up the product. It’s mainly a solvent for ingredients that do not like to dissolve in oils but rather in water. Expand to read more Once inside the skin, it hydrates, but not from the outside - putting pure water on the skin (hello long baths!) is drying. One more thing: the water used in cosmetics is purified and deionized (it means that almost all of the mineral ions inside it is removed). Like this, the products can stay more stable over time. A natural moisturizer that’s also in our skin A super common, safe, effective and cheap molecule used for more than 50 years Not only a simple moisturizer but knows much more: keeps the skin lipids between our skin cells in a healthy (liquid crystal) state, protects against irritation, helps to restore barrier Effective from as low as 3% with even more benefits for dry skin at higher concentrations up to 20-40% High-glycerin moisturizers are awesome for treating severely dry skin Butylene glycol, or let’s just call it BG, is a multi-tasking colorless, syrupy liquid. It’s a great pick for creating a nice feeling product. BG’s main job is usually to be a solvent for the other ingredients. Other tasks include helping the product to absorb faster and deeper into the skin (penetration enhancer), making the product spread nicely over the skin (slip agent), and attracting water (humectant) into the skin. It’s an ingredient whose safety hasn’t been questioned so far by anyone (at least not that we know about). BG is approved by Ecocert and is also used enthusiastically in natural products. BTW, it’s also a food additive. A naturally occurring fructose polysaccharide found in the roots and rhizomes of several plants, for example, chicory. It is used in skincare for its prebiotic activity, meaning that it reduces the growth of bad bacteria in favor of friendly microorganisms naturally present on the skin. It’s the - sodium form - cousin of the famous NMF, hyaluronic acid (HA). If HA does not tell you anything we have a super detailed, geeky explanation about it here. The TL; DR version of HA is that it's a huge polymer (big molecule from repeated subunits) found in the skin that acts as a sponge helping the skin to hold onto water, being plump and elastic. HA is famous for its crazy water holding capacity as it can bind up to 1000 times its own weight in water. As far as skincare goes, sodium hyaluronate and hyaluronic acid are pretty much the same and the two names are used interchangeably. As cosmetic chemist kindofstephen writes on reddit "sodium hyaluronate disassociates into hyaluronic acid molecule and a sodium atom in solution". In spite of this, if you search for "hyaluronic acid vs sodium hyaluronate" you will find on multiple places that sodium hyaluronate is smaller and can penetrate the skin bette what‑it‑does skin-identical ingredient | moisturizer/humectant irritancy, com. moisturizer/humectant | solvent soothing | moisturizer/humectant antioxidant | cell-communicating ingredient emulsifying | surfactant/cleansing moisturizer/humectant | emollient cell-communicating ingredient | moisturizer/humectant moisturizer/humectant perfuming | solvent

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