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GHK-Cu topical serum is the ready-to-apply format of glycyl-L-histidyl-L-lysine copper the same tripeptide-copper complex used in decades of published skin research, pre-formulated for direct dermal application rather than reconstitution and injection
How our top copper peptide serum picks compare In the chart below, we break down some of the most important information on our copper peptide serum recommendations, including their pricing, subscription discounts, additional star ingredients, return policies, and more
Example: a 5 mg (5,000 mcg) vial reconstituted with 2 mL yields 2,500 mcg/mL
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US$ 20.45
US$ 20.83
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US$ 20.32
US$ 29.31
