recommended dose ghk-cu peptide Dosing Guide: Skin, Hair & Safety (2026) ghk-cu daily injection dosage ghk

Lactate Dehydrogenase (LDH) Assay In this assay performed on HaCaT keratinocytes cells, the cells were treated with GHK, GHK-Cu, CuCl 2 and Cu(OAc) 2 for 30 mins at 7 different concentrations each, ranging from 0.0058 to 5800 M0.0058 M, 0.058 M, 0.58 M, 5.8 M, 58 M, 580 M, 5800 M

This guide covers both routes side by side so the math, supplies, and evidence boundaries stay separate instead of blurring together

Of note, topical GHK-Cu stands in contrast to skin care ingredients like tretinoin and retinol, in that it wont make your skin extra-sensitive to UV rays

For those who need immediate glutathione support or have severely depleted levels (and are willing to invest in liposomal GSH or IV forms), direct glutathione supplementation could be the more effective choice