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Large-scale trials are needed before we can draw any solid conclusions

This means it works directly at the source of cellular energy

The liver could expand and perform less effectively than it should

IGFBP-3 is the major carrier protein for circulating IGF-1, and suppression has implications for endogenous IGF-1 bioavailability post-cycle

Recent human topical evidence A 2023 IRB-approved 21-woman topical trial of NEEL gel (a stabilized GHK-Cu topical) reported an average 28% increase in skin collagen density at 3 months, with a top quartile reporting 51%

Subcutaneous injections can be administered at the side or back of the upper arm, lower abdomen, and front of the thigh