GHK Cu Peptide Dosage How to Use Copper Peptides, Injections Neurogan Health Uses and Benefits #ghk GHK Cu is a naturally occurring peptide in human plasma that declines with age. When used in injections (usually subcutaneous), it can offer various benefits: Skin Rejuvenation and Anti Aging: Should Bodybuilders Take GHK Cu? Neurogan Health GHK Cu Copper Peptide Collagen, Skin Rejuvenation & Hair Restoration 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