Most people use GHK Cu way too early after microneedling and end up blunting the exact collagen signaling window theyre trying to trigger. In this video I break down the biology of why I wait around Microneedling with GHK Cu is one of the most effective ways to stimulate collagen where your skin needs it most. The reason is simple: it's targeted. Microneedling creates micro injuries on the skin, and Effective Anti Aging Peptides for Microneedling Microneedling neurotoxin + GHK CU