ghk-cu long-term use tolerance desensitization Peptide GHK: A comprehensive researcher's handbook

Proc Natl Acad Sci U S A 116(30):1512215127

What it can do is support deeper sleep and hormonal environment (including growth hormone), which in turn may indirectly help hormone function

In animal and human studies, topical or injected GHK-Cu accelerates closure, boosts granulation tissue, and stimulates the growth of new blood vessels (PMID: 8227353, 10383745)

While that could be beneficial if youre wanting to incite hair growth, on the flipside, it would be a deterrent if you do not want to stimulate hair growth (such as on the face) while using skin care products that contain copper tripeptide-1

Hydrolysis is the common degradation pathway of carboxylic acid derivatives, such as esters, amides, lactams, lactones, imides, and oximes (Figure 7.7)