glutathione is used for skin whitening L-Glutathione Anti-Aging Capsules Supplement Antioxidant Glutathione for skin lightening -
Description
V., & Velazco de Maldonado, G

Duration: For visible improvement, continue for at least 812 weeks

That kind of temperature spike can destroy a reconstituted peptide in minutes, not hours
academic.oup.com , doi:10.3945/ajcn.110.003483