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The GHK-Cu hair research overview covers this application area, and the peptides for hair growth research overview covers the broader hair peptide landscape
Product & Safety Guidance Apply a small amount of the product onto a clean area of skin on the upper forearm
Evidence boundary No published human randomized trial has evaluated long-term injectable GHK-Cu for skin, hair, or wound endpoints
We identify 147 loci associated with eGFR, including 53 novel loci and one locus with a significantly larger effect in women than in men
Copper peptides (GHK-Cu) are touted as a "slow-aging" ingredient in many skincare products
The key is that 100 units = 1 mL
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