What is the typical GHK-Cu dose?
Preclinical research protocols typically use GHK-Cu doses in the 1-2 mg per dose range, administered subcutaneously on a 2-3 times weekly schedule across 4-12 week protocols. Topical-formulation protocols use lower per-application doses (often expressed as concentration rather than mass) for dermal-research applications.
What the research literature says
GHK-Cu’s dose range was characterised across the Pickart synthesis literature spanning multiple cell types and tissue contexts. The Pickart oxidative-stress and cognitive-health review (PMID 22666519) and the skin-regeneration synthesis (PMID 26236730) reference dose tiers consistent with the 1-2 mg per dose subcutaneous range for systemic protocols. The Kang keratinocyte work documented integrin-expression and p63-positivity effects at concentrations consistent with these dose tiers (PMID 19319546).
The Conato coordination-chemistry framework (PMID 11325542) anchors the structural understanding that drives dose selection — the 1:1 Cu(II) chelation ratio means GHK-Cu doses are expressed as the copper-complexed peptide mass rather than as the free GHK-tripeptide mass. The 50 mg per-vial loading in the Ronin catalog supports many doses at the 1-2 mg per dose tier across the typical 4-12 week protocol.
The 2018 regenerative-actions review (PMID 29986520) consolidates the gene-expression data and supports the multi-week protocol design framework. Topical-formulation research uses different dose conventions (concentration in cosmetic-formulation contexts, typically expressed as percentage by mass).
Why this matters in research context
The 1-2 mg per dose subcutaneous range is the operational anchor for most systemic GHK-Cu research protocols. The 2-3 times weekly schedule aligns with the compound’s pharmacology and the typical multi-week cycle length used in the published research. Topical-formulation protocols are operationally distinct and use cosmetic-formulation dose conventions; researchers should anchor protocol design to the specific application context (systemic vs topical).
Related compounds
- GHK-Cu 50mg — the compound covered by this answer
- Glow Blend — combined-formulation including GHK-Cu
Related research questions
- How long is a typical GHK-Cu cycle?
- How much bacteriostatic water with GHK-Cu?
- How does GHK-Cu work?
References
- Conato C et al. Copper complexes of glycyl-histidyl-lysine and two of its synthetic analogues: chemical behaviour and biological activity. Biochim Biophys Acta 2001;1526(2):199-210. [PMID 11325542]
- Kang YA et al. Copper-GHK increases integrin expression and p63 positivity by keratinocytes. Arch Dermatol Res 2009;301(4):301-306. [PMID 19319546]
- Pickart L et al. The human tripeptide GHK-Cu in prevention of oxidative stress and degenerative conditions of aging: implications for cognitive health. Oxid Med Cell Longev 2012;2012:324832. [PMID 22666519]
- Pickart L et al. GHK Peptide as a Natural Modulator of Multiple Cellular Pathways in Skin Regeneration. Biomed Res Int 2015;2015:648108. [PMID 26236730]
Research-questions pages describe research-context use of peptide-research terminology. They do not constitute medical, veterinary, or clinical advice. GHK-Cu is sold strictly as a research-grade reagent for laboratory and bench research applications.