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Abstract We developed a novel enzymatic glutathione (GSH) production system using Saccharomyces cerevisiae as a whole-cell biocatalyst, and improved its GSH productivity by metabolic engineering

They also support skin repair and regeneration

In a rat ischemic wound model, topical tripeptide-copper complex reduced wound area more than vehicle and was associated with lower TNF-alpha and MMP-2 and MMP-9 concentrations at measured time points 16

Due to its powerful ability to restore skin elasticity, reduce inflammation, and accelerate wound healing, GHK-Cu is widely utilized in regenerative medicine, dermatology, and anti-aging therapies

The FDA classifies it as a cosmetic ingredient when used topically in over-the-counter skincare products, per 21 CFR 700 [11]