Peptide Skincare & BeautySkin science and ingredient guides

Ingredient or product comparison

Medik8 Niacinamide Peptides Versus Medik8 Liquid Peptides Advanced MP

Medik8 Niacinamide Peptides Versus Medik8 Liquid Peptides Advanced MP Detailed comparison of Medik8 Niacinamide Peptides versus Medik8 Liquid Peptides Advanced MP. This smoothing serum is formulated around Niacinamide and Zinc PCA to refine skin texture and ba

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Medik8 Niacinamide Peptides Versus Medik8 Liquid Peptides Advanced MP Detailed comparison of Medik8 Niacinamide Peptides versus Medik8 Liquid Peptides Advanced MP. This smoothing serum is formulated around Niacinamide and Zinc PCA to refine skin texture and balance excess oil. This anti-aging serum is formulated around Palmitoyl Tripeptide-38 and Palmitoyl Tripeptide-5 to soften the look of wrinkles and refine skin texture. Water Niacinamide Caprylic/Capric Triglyceride Acetyl Glucosamine Glyceryl Stearate Citrate Glycerin Dimethicone Zinc PCA Palmitoyl Tetrapeptide-10 Sodium Hyaluronate Phenoxyethanol Polyglyceryl-3 Stearate Hydroxyacetophenone Crambe Abyssinica Seed Oil Hydrogenated Lecithin Behenyl Alcohol Cetearyl Alcohol Hydroxyethyl Acrylate/Sodium Acryloyldimethyl Taurate Copolymer Disodium EDTA Xanthan Gum Cetyl Palmitate Ethylhexylglycerin Carnosine Sorbitan Stearate Polysorbate 80 Polysorbate 60 Sorbitan Isostearate Sodium Benzoate Citric Acid Tocopherol Water, Niacinamide, Caprylic/Capric Triglyceride, Acetyl Glucosamine, Glyceryl Stearate Citrate, Glycerin, Dimethicone, Zinc PCA, Palmitoyl Tetrapeptide-10, Sodium Hyaluronate, Phenoxyethanol, Polyglyceryl-3 Stearate, Hydroxyacetophenone, Crambe Abyssinica Seed Oil, Hydrogenated Lecithin, Behenyl Alcohol, Cetearyl Alcohol, Hydroxyethyl Acrylate/Sodium Acryloyldimethyl Taurate Copolymer, Disodium EDTA, Xanthan Gum, Cetyl Palmitate, Ethylhexylglycerin, Carnosine, Sorbitan Stearate, Polysorbate 80, Polysorbate 60, Sorbitan Isostearate, Sodium Benzoate, Citric Acid, Tocopherol Dimethyl Isosorbide Butylene Glycol Undecane Arginine Inulin Microcrystalline Cellulose Ceteareth-20 Tridecane Palmitoyl Tripeptide-38 Panthenol Palmitoyl Tripeptide-5 Polyacrylate Crosspolymer-6 Palmitoyl Tripeptide-1 Pullulan Tetrapeptide-21 Palmitoyl Tetrapeptide-7 Ammonium Polyacryloyldimethyl Taurate Glyceryl Linoleate Acetyl Hexapeptide-8 Pentapeptide-18 Oligopeptide-1 Arginine/Lysine Polypeptide Sucrose Palmitate Carbomer Copper Palmitoyl Heptapeptide-14 Heptapeptide-15 Palmitate Benzotriazolyl Dodecyl P-Cresol Polysorbate 20 Sodium Metabisulfite Dunaliella Salina Extract Helianthus Annuus Seed Oil Hydroxypropyl Cyclodextrin Dimethicone/Vinyl Dimethicone Crosspolymer Caprylyl Glycol Pantolactone T-Butyl Alcohol Potassium Sorbate Glyceryl Caprylate Lactic Acid/Glycolic Acid Copolymer Polyvinyl Alcohol Phenylpropanol Water, Glycerin, Dimethicone, Dimethyl Isosorbide, Butylene Glycol, Undecane, Arginine, Inulin, Microcrystalline Cellulose, Ceteareth-20, Tridecane, Tocopherol, Hydroxyacetophenone, Sodium Hyaluronate, Palmitoyl Tripeptide-38, Panthenol, Caprylic/Capric Triglyceride, Palmitoyl Tripeptide-5, Polyacrylate Crosspolymer-6, Palmitoyl Tripeptide-1, Pullulan, Tetrapeptide-21, Palmitoyl Tetrapeptide-10, Palmitoyl Tetrapeptide-7, Ammonium Polyacryloyldimethyl Taurate, Glyceryl Linoleate, Acetyl Hexapeptide-8, Pentapeptide-18, Oligopeptide-1, Arginine/Lysine Polypeptide, Sucrose Palmitate, Cetyl Palmitate, Phenoxyethanol, Ethylhexylglycerin, Carbomer, Copper Palmitoyl Heptapeptide-14, Heptapeptide-15 Palmitate, Benzotriazolyl Dodecyl P-Cresol, Polysorbate 80, Sorbitan Stearate, Polysorbate 20, Carnosine, Sodium Metabisulfite, Dunaliella Salina Extract, Helianthus Annuus Seed Oil, Hydroxypropyl Cyclodextrin, Dimethicone/Vinyl Dimethicone Crosspolymer, Sodium Benzoate, Hydrogenated Lecithin, Caprylyl Glycol, Pantolactone, Xanthan G These ingredients are found in both products. Ingredients higher up in an ingredient list are typically present in a larger amount. Caprylic/Capric Triglyceride (aka MCT Oil) is a lightweight emollient, solvent, and texture enhancer. It is considered a skin-softener by helping to prevent moisture loss. Though it behaves like an oil, it is not technically one due to its chemical composition. One perk of this ingredient is that it is very stable, resistant to oxidation, and unlikely to go rancid. In practice, that translates to a long shelf life and a consistently elegant skin feel. While there is an assumption Caprylic Triglyceride can clog pores due to it being derived from coconut oil, there is no research supporting this. Just patch test if you have concerns. Fractionated coconut oil and MCT Oil are both listed as Caprylic/Capric Triglyceride according to INCI. This is because INCI names are based on the ingredient’s final chemical composition and not its marketing name or source. This ingredient is treated as the gold standard fungal acne safe oil. Even though it is coconut derived, the problematic lauric acid is stripped out. This leaves just caprylic (C8) and capric (C10) acid. These chain lengths actually trend antifungal; a 2020 study found caprylic acid was enough to disrupt Malassezia furfur cell membrane, with a caprylic acid derivative damaging membrane structures at concentrations as low as 0.2%. Carnosine is a dipeptide made from two amino acids. This ingredient helps: Glycation is the process of sugars binding to and damaging proteins. Too much sugar in our skin can lead to damaged collagen, contributing to factors of aging. Carnosine is water-soluble and is not able to travel deeper layers of skin. This leads to some doubt about whether it can boost collagen in skin, since collagen is located in the deeper layers of skin. Fun fact: Carnosine can be naturally found in our muscles and brain. Cetyl Palmitate is a wax-ester that pulls triple duty as an emollient, thickener, and emulsion enhancer. It helps enhance the texture of products by giving a smooth, silky feel while helping to stabilize the formula. The emollient action softens skin and reduces moisture loss. This ingredient is considered safe and human testing of concentrations between 2.5-2.7% were found minimal irritation. Just know, there have been very rare cases of the palmitate family causing contact dermatitis. This ingredient may not be fungal acne safe because it contains a C16 ester (palmitic acid) that falls into the C11-24 range that Malassezia can feed on. Citric Acid is an alpha hydroxy acid (AHA) naturally found in citrus fruits like oranges, lemons, and limes. Like other AHAs, citric acid can exfoliate skin by breaking down the bonds that hold dead skin cells together. This helps reveal smoother and brighter skin underneath. However, this exfoliating effect only happens at high concentrations (20%) which can be hard to find in cosmetic products. Due to this, cit