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Methylcobalamin : A naturally occurring, active form of B12 used in some injections
Working with fibroblast cultures, they demonstrated that GHK-Cu stimulated collagen synthesis at concentrations beginning between 10 picomolar and 100 picomolar, with peak stimulation at 1 nanomolar
Compounding allows concentrations of vitamin C and retinoid that exceed whats available in over-the-counter or prescription commercial products
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