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Collagen Synthesis: Studies from the National Center for Biotechnology Information demonstrate that GHK-Cu increases Type I and Type III collagen production in aged fibroblasts by up to 70%

Ahn SI, Sei YJ, Park H-J, Kim J, Ryu Y, Choi JJ, Sung H-J, MacDonald TJ, Levey AI, Kim Y

2012 Apr 1;129:S50-3

Identifying Underlying Causes Once a deficiency is confirmed, it is essential to determine the underlying cause to provide appropriate treatment

It is designed to show exactly how much solution to draw for a chosen dose, once the peptide vial has been reconstituted with bacteriostatic water

The recommended protocol rotates all three (PDRN, EGF, GHK-Cu) across sessions so each gets a fresh chamber and the underlying biology of each pathway has time to compound