Pay in 4 interest-free payments of $7.01 Learn more
Ships within 48 hours · Estimated delivery Aug 16 - Aug 21
This essential supplement is designed to boost your skin's radiance and vitality
NAC typically shows effects within 2-4 weeks [9] Safety and Side Effects Oral Glutathione Glutathione has generally been reported to be well-tolerated in clinical trials
Devon Abelman, contributor More to know Types of vitamin C: 3-O-ethyl ascorbic acid, ascorbic acid (percentages undisclosed) Other key ingredients: 63% Hippophae rhamnoides water, 5% niacinamide, 2% tranexamic acid Fragrance-free: yes Best for Advanced Users: CosRx Advanced The Vitamin C 23 Why it's worth it: If youre not new to the vitamin C gamesay, youre ready to graduate from CosRxs lower-dose The Vitamin C 13 SerumCosRxs The Vitamin C 23 Serum turns things up with a potent 23% concentration of L-ascorbic acid (the pure, biologically active form of vitamin Cwhile ascorbic acid is the broader chemical name youll see on ingredient lists, it typically refers to this same L-form in skin care)
All other data are available in the main text or Supplementary Information
