Breakouts after starting the Glow Stack?, Heres what may be happening., The Glow Stack includes regenerative peptides one contains copper. Copper supports collagen and healing., But copper and zinc GHK Cu Peptide: Hair Regrowth for Thinning & Alopecia GHK Cu Copper Peptide: Dosage, Before and After Results, and How It Works Perfect B GHK Cu Hair Foam for Women Cosmetic Scalp Support by Eden My insight on copper peptide aka GHK CU. Dont forget to take your zinc! GHK Cu Blue Skies Health & Wellness Clinic