The GHK Cu pen works. But needles at home were never the answer. We took the same clinically backed copper peptide complex and put it into a serum you can use in 30 seconds, GHKCu Copper Peptide Therapy Skin & Healing Regeneration Close Blue Vial Peptide Blend Next Stock Photo 2682305587 Shutterstock Hyaluronic Acid and GHK cu Peptide, Advanced Micro Needle Infusion Sys PEPTIQ.skin Amazon.com: Neurogan GHK Cu (Copper Peptide) Neck & Face Serum 1,200mcg (1 oz bottle) : Beauty & Personal Care GLOW 50 GHK Cu 35 mg TB 500 10 mg BPC 157 5 mg Peptide Cart