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(2025), 10.1038/s42255-025-012456

Current Research Limitations Most clinical studies on GHK-Cu involve: Topical formulations In vitro research Animal models Systemic (non-injectable) delivery There is insufficient evidence in peer-reviewed literature to support: standardized injection techniques validated injectable dosing regimens long-term safety or efficacy data for injectable use As a result, clinicians should approach injectable discussions with caution and rely on evidence-based peptide education rather than anecdotal protocols

What It Targets Our Epithalon + GHK-Cu combination peptides are designed to target: Cellular aging pathways, including telomere attrition, oxidative stress, and circadian disruption in midlife and beyond. Sleep quality and recovery in clients with agerelated melatonin decline, tired but wired evenings, or irregular sleepwake cycles. Visible skin agingfine lines, laxity, dullness, and textural changesthrough enhanced collagen, elastin, and dermal remodeling. Overall biological age markers in clients already investing in nutrition, exercise, stress work, and other Better Med Spa protocols (GLP1s, Tesamorelin, etc.)

A large number of studies have recognized that lactate is a possible mediator of the loss of p53 signaling, which promotes tumor cell proliferation 219