GHK Cu is a powerhouse peptide that stimulates collagen + repairs skin. , Paired with microneedling, it penetrates deep for maximum anti aging benefits., Microneedling creates the pathways, GHK Cu 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 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