Is it safe to use subcutaneous (SC) GHKCu (glycylhistidyllysine copper peptide) injections for prolonged cycles in combination with ratatrutide (GLP1 agonist)? GHK Cu is one of my personal favorites for a lot of reasons, but I can say without a doubt that it's use effectively stopped and reversed, my receiving hairline. However, there are Amazon.com: GHK Cu Copper Peptide Supplement, Anti Aging & Hair Growth Support, Improves Skin Elasticity & Firmness, Thicker, Fuller Hair, Easy Absorption, Precisely Dosed, 90 Vegan Capsules : Health & Household Fair & White Original Glutathione Extra Brightening Lotion 500ml gtworld.be GT World of Beauty International Amazon.com: Skin Perfection Copper Peptide Serum GHK CU 1% for Face & Hair Copper Peptides for Skin, Hair, & Scalp 1% Blue Liquid for Face, Neck, Body, Scalp Multi Use Serum Booster with Ghk Cu Intra Nasal Spray 50 mg 0.34 oz. Westend Medical Supply