Ingredient library
Every ingredient SkinAtlas knows about — all 2161 of them. What each one does, what it works well with, and what to watch for.
11 ingredients in Active matching "acid"
An ether derivative of L-ascorbic acid in which the 3-OH position is protected by an ethyl group, making it stable in water-based formulas. Converts to Vitamin C inside skin cells. Used widely in Japanese brightening products (Shiseido, Elixir) as a quasi-drug-adjacent brightening active.
Pure vitamin C; a potent antioxidant and brightener.
A multitasker for redness, acne and pigmentation.
The sodium salt of deoxyribonucleic acid (DNA), typically sourced from salmon milt (sperm). Highly hydrophilic — attracts and retains moisture. Also promotes skin cell repair mechanisms. Used in Lululun's Hydra PD mask.
A water-soluble phosphate salt derivative of ursolic acid, a pentacyclic triterpenoid found in rosemary and other botanicals. Developed for improved delivery of ursolic acid's anti-aging and anti-inflammatory benefits.
Vitamin B9 (pteroylglutamic acid) used in cosmetics as an antioxidant and skin-conditioning agent that supports cellular renewal.
A postbiotic ferment derived from Lactococcus lactic acid bacteria, delivering bioactive metabolites including lactic acid, bacteriocins, and exopolysaccharides that condition skin and support microbiome health.
Nicotinic acid, the free acid form of vitamin B3 (distinct from niacinamide/nicotinamide). At cosmetic use concentrations, functions as a skin conditioner and antioxidant. Included in Filorga Time-Filler 5-XP's NCEF complex alongside niacinamide and other B vitamins.
A naturally derived dicarboxylic acid (C18 unsaturated) produced by bioconversion of oleic acid; used in premium skincare as a mild skin-brightening and antimicrobial active.
The free acid form of vitamin B5, distinct from panthenol (the alcohol form) and calcium pantothenate (the salt form); used in cosmetics as a skin-conditioning agent contributing to moisture retention and barrier support.
A brightening active particularly effective on stubborn pigmentation.