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doi: 10.1016/j.conctc.2021.100780
Copper Tripeptide-1 (3%): The maximum effective dose for topical application
The problem with inexpensive glutathione supplements is that GSH is inherently unstable: the thiol group of the molecule oxidises relatively quickly to the inactive GSSG form upon exposure to heat, light or oxygen
Lavriv DS, Neves PM, Ravasco P
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