how often should i use ghk cu GHK-Cu Peptide Therapy: The Definitive Clinical Guide to Gene Modulation, Protocols, and Efficacy How long does it take

It is a designation used primarily by the FDA (Food and Drug Administration) for products, often in vitro diagnostic (IVD) components like reagents or instruments, that are in the laboratory research phase of development and are not intended for clinical diagnostic use

The early decline phase (weeks 2-8) marks when users first notice subtle changes as copper levels normalize to dietary intake baseline, collagen synthesis rates decline toward pre-treatment levels, and the balance between new collagen production and ongoing degradation shifts toward net neutral or slight decline

documented that GHK-Cu modulates over 4,000 human genes, including gene sets involved in tissue remodeling, Wnt pathway signaling, and inflammatory regulation

It isn't an actual tax but a mathematical effect where fluctuating returns result in lower long-term growth compared to a steady return