GHK CU, Why this audio? Because injecting feels like a constant wasp sting so it takes me about 15 seconds to pin .2 mL. I dread this shot every night for that reason. Also, it leaves me bruised, so I Amazon.com: Skin Perfection GHK Cu Copper Peptide Powder 99.7% Pure DIY Copper Peptides Serum for Face and Scalp Cosmetic Grade GHK Cu 1 Gram Creates Up to 100ml for Fuller Hair and week 3 of using GHK Cu peptide pin. If I take a photo with the same lighting? How much of a difference do you think there will be? #ghkcu #peptide #look #looksmaxing #glowup GHK CU Copper Peptide Face Serum Robyn's Tack Room ROBYN'S TACK ROOM