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First discovered in 1977 by Swiss researchers who isolated it from the cerebral venous blood of sleeping rabbits, DSIP was initially identified for its ability to promote delta-wave sleep when administered to various animal species
A case of Stevens-Johnson syndrome and toxic epidermal necrolysis has been reported following intravenous infusion of glutathione combined with vitamin C in a 2025 case report by Johnson, Jarvis, and colleagues in the Journal of Burn Care and Research
Think of it as nudging your cells back toward balance rather than blasting them with force
Consider the delivery system
The result is a modest, surface-level improvement better than most skincare ingredients, but limited by the delivery method
A peptide is only as stable as its weakest link
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