This is an update on my skin (face slide 1 and loose tummy skin slide 2) our GHK Cu does not only target wrinkles and fine lines on the face but also all 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 Subcutaneous Injection Sites and Instructions for Safe Self Administration GHK Cu (copper peptide) is a science backed anti aging compound that supports collagen production, skin regeneration, and overall skin health. Used in both topical serums and subcutaneous GHK CU Before and After Pictures Topical GHK Cu Skin Results, Face Serum Reviews & Photo Results Neurogan Health Subcutaneous Injection Sites and Instructions for Safe Self Administration