ghk-cu 50mg dose Lyophilized Powder | Copper Peptide for Skin 7% GHK-CU ACCELERANT - Platinum

The case for the injectable route over oral comes down to one thing: bioavailability

For example, one patient said her skin feels firmer, and my fine lines are way less noticeable after a few months of GHK-Cu injections

That same pilot study found natural killer (NK) cell activity, a frontline part of your immune system, increased by as much as 400% at the two-week mark, alongside a 60% rise in lymphocyte proliferation

Gao Y, Li J, Wu Q, Wang S, Yang S, Li X, Chen N, Li L et al (2021) Tetrahydroxy stilbene glycoside ameliorates Alzheimers disease in APP/PS1 mice via glutathione peroxidase related ferroptosis

Considering the number of patients and the few reported cases, you can see how rare these reactions really are