GHK Cu Sundrata Clinic 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 ZS Private Logo M20 Wireless Cosmetic Pen Device with Serum Dispenser Bottles Home Use Beauty Tool for Face Scalp and Body EGF Serum Best for Microneedling Stem Cell Serum For Microneedling Stem Cell Serum STEMBOTANY 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