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Yes, it's generally safe when used as prescribed
The research literature focuses overwhelmingly on GHK-Cu because it's the form found naturally in human tissue
This powerhouse ingredient works by inhibiting tyrosinase, the enzyme responsible for melanin production in your skin
Free acid value refers to the true strength of a glycolic acid product, and is affected by both the concentration of acid and the pH of the formula
Reduced glutathione is the main source of thiol groups in the vast majority of living cells, plays an important role in maintaining the appropriate redox state of thiol groups in proteins, and is a key antioxidant in animal cells
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