GHK Cu Organic Serum Copper Peptide for Anti Aging & Skin Repair 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 24h After Results PDRN, GHK Cu, and Sheep Placenta with Derminator 2 and 12 Pins : r Microneedling 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 Topical GHK CU eagleresearchlabs.co.uk