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Studies utilizing electron paramagnetic resonance spectroscopy have quantified the SOD-like activity of GHK-Cu at approximately 1,200 units/mg, representing moderate antioxidant capacity relative to native SOD enzymes

[DOI] [PMC free article] [PubMed] [Google Scholar] 142.Yang C., Han M., Li R., Zhou L., Zhang Y., Duan L., Su S., Li M., Wang Q., Chen T., et al

weekly dosing

Hamaya, R
Preventive effects of cranberry products on experimental colitis induced by dextran sulphate sodium in mice

However, half-life alone does not determine detection windows