In practice, the challenge is rarely just "can GSH react?"it is whether the conjugation route will give the desired attachment site, manageable impurity profile, acceptable stability, and data that clearly distinguish the target product from free glutathione, oxidized material, and positional isomers
A realistic melasma plan combines in-clinic treatment with daily photoprotection and ongoing maintenance, and your provider will be direct with you about what is achievable for your specific pattern
Dong Y, Carty J, Goldstein N, He Z, Hwang E, Chau D, et al
Reduces inflammation a major driver of skin aging, redness, and sensitivity
2018 Apr-Jun;19(2):69-81
Brush your teeth and tongue