ghk-cu recommended dose subcutaneous Dosage Guide: Typical Protocols, Injection & Topical GHK-Cu Peptides Before and After:

"LGD4033 and MK677 use impacts body composition, circulating biomarkers, and skeletal muscle androgenic hormone and receptor content: A case report." Experimental physiology 107.12 (2022): 1467-1476

Using higher doses

So I like literally put it in

The mRNA levels of proinflammatory factors including IL-6, TNF-, IL-8, TLR-2, TLR-4, and other proinflammatory markers decreased in response to PEP-B in the differentiation microenvironment of dental pulp stem cells [52]

Both approaches bypass the digestive tract, which can be especially helpful for individuals who do not absorb nutrients efficiently through oral supplements