Because of that, Ive found it works best when I pat it into my skin rather than rubbing it in like I typically would with a serum. Christa Joanna Lee, contributing commerce writer More to know Niacinamide percentage: undisclosed Other key ingredients: cocoa seed extract, vitamin E, hyaluronic acid, coptis japonica root Fragrance-free: yes Best for Melasma: Medicube TXA Niacinamide 15% Serum Why we love it: With 10% niacinamide, its already a pretty high percentage, but add 5% tranexamic acid, and youre in serious pigment-correcting territory
Glutathione is a tripeptide that is naturally produced in human organism from three amino acids - cysteine, glutamine and glycine
Lower abdomen, outer thigh, or upper arm all work fine
Howe CL, Mayoral S, Rodriguez M
Both numbers show there is no issue with the heterogeneity