intradermal injection ghk-cu clinical trial Rejuvenation and Youth with Peptide Treatment The Effect of the Human
Description
It helps flush out impurities that might aggravate skin issues like acne and blemishes

doi: 10.1111/j.1365-4362.1992.tb02717.x

Oral administration at 100150mg to match subcutaneous bioavailability doubles the per-dose cost, which influences protocol design when budget constraints exist
Sources: Takeuchi S, et al

Glynn and Ahmad, 2003)
Fact: Its primarily an antioxidant
