Allies of Skin 35% Vitamin C+ Perfecting Serum Versus Medik8 Super C Ferulic

Allies of Skin 35% Vitamin C+ Perfecting Serum Versus Medik8 Super C Ferulic Detailed comparison of Allies of Skin 35% Vitamin C+ Perfecting Serum versus Medik8 Super C Ferulic. This brightening serum is formulated around 3-O-Ethyl Ascorbic Acid and Tetrahexyldecyl Ascorbate to brighten dull-looking skin and fade the look of dark spots. This brightening serum is formulated around 3-O-Ethyl Ascorbic Acid and Ferulic Acid to brighten dull-looking skin and fade the look of dark spots. No concerns Ethoxydiglycol 3-O-Ethyl Ascorbic Acid Tetrahexyldecyl Ascorbate Dimethyl Isosorbide Isodecyl Neopentanoate Glutathione Superoxide Dismutase Ethylhexylglycerin Caprylyl Glycol Phenoxyethanol Ethoxydiglycol, 3-O-Ethyl Ascorbic Acid, Tetrahexyldecyl Ascorbate, Dimethyl Isosorbide, Isodecyl Neopentanoate, Glutathione, Superoxide Dismutase, Ethylhexylglycerin, Caprylyl Glycol, Phenoxyethanol Methoxymethylbutanol Propylene Glycol Butylene Glycol Pentylene Glycol Ferulic Acid Tetrahydrodiferuloylmethane Water Tocopheryl Acetate Methoxymethylbutanol, 3-O-Ethyl Ascorbic Acid, Propylene Glycol, Butylene Glycol, Pentylene Glycol, Ferulic Acid, Tetrahydrodiferuloylmethane, Water, Tocopheryl Acetate Be the first to review These ingredients are found in both products. Ingredients higher up in an ingredient list are typically present in a larger amount. 3-O-Ethyl Ascorbic Acid is one of the most popular "stable" vitamin C derivatives in skincare. Plain ascorbic acid is fantastic but notoriously fragile; it browns, oxidizes, and loses potency fast. So attaching an ethyl group to the third carbon of the molecule gives it some cool perks: In a formula, it does the 3 classic vitamin C jobs: it acts as an antioxidant, helps brighten skin tone by inhibiting tyrosinase, and supports collagen. The evidence is reasonably solid for a cosmetic ingredient; Liao and colleagues (2018) showed it's significantly more stable than ascorbic acid while still being effective. A 2021 study by Zerbinati and colleagues tested a serum with 30% 3-O-ethyl-l-ascorbic acid and 1% lactic acid significantly increased collagen production, reduced UVB-induced DNA damage, and decreased melanin on a reconstructed pigmented skin model. Typical real world usage sits around 0.5-5% (and 1-2% is common for daily serums). Amounts up to 30% have been shown to be non-irritating on human skin samples, but two isolated cases reported allergic contact dermatitis so a patch test is sensible if you have reactive skin.