The Bottom Line PT-141 remains the gold standard for peptide-based libido enhancement: FDA-approved, well-studied, effective in both sexes
Continue alternating cycles for sustained results
However, although the preclinical studies cited above point toward potential metabolic effects of SDF-1, it is unknown whether there are any physiological or pharmacological consequences of DPP-4-mediated cleavage of SDF-1 for metabolic control in humans
A practical approach is to apply GHK-Cu in the morning after cleansing and before sunscreen, and use a retinoid at night
Each component brings distinct research-backed properties: BPC-157 for tissue repair and gastrointestinal cytoprotection, TB-500 for cell migration and anti-inflammatory activity, and GHK-Cu for collagen synthesis and skin remodeling
Eur Heart J (2019) 40:383845