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It reports solution concentration only, for planning a laboratory dilution

References "Prospective, Preclinical Comparison of the Performance Between Radiofrequency Microneedling and Microneedling Alone," Journal of Cosmetic Dermatology , September 6, 2019

Key Takeaways: GHK-Cu Before and After Copper peptide before and after results are real but not instant: visible skin improvements typically begin between weeks 3 and 6, with peak collagen remodeling results appearing at 10 to 12 weeks on a supervised injectable protocol

Feel free to post your blood work, and I'll try my best

Others have assessed B12 shots for reducing deficiency due to other causes