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A clinical trial comparing GHK-Cu to Matrixyl 3000 (one of the most popular anti-aging peptide ingredients in skincare) showed GHK-Cu produced a 55.8% reduction in wrinkle volume compared to control and a 31.6% reduction compared to Matrixyl 3000 itself
The other two forms are hydroxocobalamin and cyanocobalamin
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Free shipping applies to all orders over $200 inside Costa Rica, and a 15% bulk discount kicks in automatically on orders of five or more vials of the same product bringing the 10mg vial down to $76.50 each
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