what is ghk-cu serum Copper Peptide with Niacinamide, Hyaluronic Acid and Mushroom Extract ZQ-II Anti-Aging GHK-CU Serum 3ml

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Schedule: Subcutaneous injections 5 days per week (or 3/week) for 812 weeks, optionally extended to ~16 weeks

After 24 h, the cells were stimulated with hHGF or dimeric macrocycle in RPMI1640 medium supplemented with 10% FBS for 10 min

This protocol maintains copper supplementation supporting collagen synthesis without full daily intensity, potentially sustaining 60-80% of peak benefits at 50-70% of continuous use cost while avoiding complete benefit decline from full discontinuation

The complete titration schedule from clinical trials

There have been no clinical studies specifically evaluating the safety of topical GHK-Cu during pregnancy or breastfeeding