TB-500 is more oriented towards internal repair (cardiac, tendon), GHK-Cu more oriented towards surface (skin, hair)
10.1007/s12031-020-01508-9 24 LuoJ.ChenG.LiangM.XieA.LiQ.GuoQ.et al (2018)
The peptide has also never been characterized in humans the way an approved drug is: there is no established human pharmacokinetic profile, no dose-ranging efficacy study, and no long-term safety dataset
Why its rising now (and why youll hear more in 2026) 1) Peptides have become the new actives for the mainstream Consumers are moving from retinol and acids into the next tier of jargon-y, science-coded ingredients
And it brings to mind, in the context of the nervous system, I always tell people, you only have a small kit of neurochemicals to work with
Medications like metformin or acid blockers can also play a role