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Description
GHK-Cu is a research-use-only material and Sparta Labs makes no claims about its use.

However, as you begin researching how to add it to your routine, you likely encounter a frustrating debate: can glutathione actually be absorbed when you take it as a pill

Copper peptide products require strict formula control
Meta-analysis: glutathione-S-transferase allelic variants are associated with alcoholic liver disease

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