Most people use GHK Cu way too early after microneedling and end up blunting the exact collagen signaling window they're trying to trigger. In this video I break down the biology of why I GHK Cu Copper Peptide Shampoo Ion Peptide Copper Peptides Ingredient Guide Nubeean Noosa Most people use GHK Cu way too early after microneedling and end up blunting the exact collagen signaling window they're trying to trigger. In this video I break down the biology of why I