topical vs injected ghk cu What Is GHK-Cu? Benefits, Uses, Risks & Research Explained Are We Ready to Measure
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For comparison, oral forms of GHK-Cu are likely 1%-5% and that is being very generous

It contains a small amount of white lyophilised powder freeze-dried peptide that needs to be dissolved back into solution before it can be used in research

To use on scalp for hair growth: Apply to your scalp after washing your hair
