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Long-term use safety Evidence for long-term use: Studied for decades Safe for months to years No tolerance development Benefits maintained Cycling not necessary: Can use continuously No downregulation Some cycle for cost reasons Not required for safety How long to use: Minimum: 8-12 weeks (see results) Common: 3-6 months initially Long-term: Many use 6-12+ months Maintenance: 2-3x weekly ongoing Sourcing quality 50mg GHK-Cu Finding effective products ensures results

Saccharide isomerate ameliorates cosmetic scalp conditions in a Chinese study population

SIRT1 inhibitor, AG1031, promotes apoptosis through uncontrolled p53 activation (Hunot et al