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K., Hill, K
In a landmark human trial comparing topical GHK-Cu to vitamin C and retinoic acid (tretinoin), GHK-Cu produced measurable collagen increases in 70% of study volunteers outperforming both comparator treatments (Abdulghani et al., 1998)
Supports reproductive health and nervous system functions
[DOI] [PubMed] [Google Scholar] 25.Spiering B.A., Kraemer W.J., Hatfield D.L., Vingren J.L., Fragala M.S., Ho J.-Y., Thomas G.A., Hkkinen K., Volek J.S
For those with severe deficiencies or chronic conditions, more frequent injections may be necessary
The blue color is normal too
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