Long-term use should be supervised and monitored by a healthcare professional
Authors have reported mild and temporary skin reactions at the injection site, such as redness, itching, or swelling
Biochim Biophys Acta 1812:888892 Chen R, Mias GI, Li-Pook-Than J, Jiang L, Lam HY, Miriami E, Karczewski KJ, Hariharan M, Dewey FE, Cheng Y, Clark MJ, Im H, Habegger L, Balasubramanian S, OHuallachain M, Dudley JT, Hillenmeyer S, Haraksingh R, Sharon D, Euskirchen G, Lacroute P, Bettinger K, Boyle AP, Kasowski M, Grubert F, Seki S, Garcia M, Whirl-Carrillo M, Gallardo M, Blasco MA, Greenberg PL, Snyder P, Klein TE, Altman RB, Butte AJ, Ashley EA, Gerstein M, Nadeau KC, Tang H, Snyder M (2012) Personal omics profiling reveals dynamic molecular and medical phenotypes
Absorption rates can vary slightly between sites
Certain nutrients are essential for the synthesis of glutathione, so now is the time to include them in your diet
Tranexamic acid (topical): Investigated in clinical trials for melasma with more robust evidence than IV glutathione