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What evidence supports the proposed use and route in humans

2C and E and S4)

The rather broad definition of heavy metals may also be applied to toxic metalloids (a chemical element that has properties that include a mixture of those of metals and non-metals), like arsenic, as well as nutritionally-essential trace minerals with potential toxicities at elevated intake or exposure (eg, iron, zinc, or copper)

doi: 10.1186/s12860-017-0147-7

Evidence suggests possible involvement in fibroblast activation, granulation tissue formation, and epithelialization processes

See our head-to-head comparison of GHK-Cu vs NAD+ for patients deciding between these two protocols for a full breakdown of where each one fits in a comprehensive longevity protocol