copper ghk-cu Private label GHK GHK-CU Copper Peptide, Hair &

B12 deficiency can still occur and this vitamin may still be needed

Ribet and Cossart 2015)

The present strategy therefore has been to enhance the activity of endogenous HGF instead of devising methods of HGF delivery

The critical unanswered question is whether a topical product delivers GHK-Cu to viable dermis at concentrations above these effective thresholds

FDA staff reviewers highlighted that evidence supporting peptides' effectiveness for their proposed uses is scant and also flagged the lack of human trials

14 Adults under 50: ~2.4 mcg per day Adults over 50: 2.4 mcg per day Older adults are advised to supplement with B12 where necessary due to the reduced stomach acid and intrinsic factor and/or medications