No validated human pharmacokinetics A human half-life, bioavailability, tissue distribution, metabolic pathway and exposure-response relationship have not been established through a published clinical programme
Online vendors begin marketing the compound directly to consumers, embedding testimonials and before-and-after imagery
Because the message is hope
The cosmetic ingredient regulatory framework, distinct from the pharmaceutical regulatory framework, governs these uses in most jurisdictions
For long-term storage, lyophilized glutathione powder should be kept in a freezer at approximately -20C (-4F)
For people interested in understanding why pigmentation develops and how it is managed, understanding the role of melanin is an important first step