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Liquid-chromatography mass spectrometry (LC-MS) is considered to be a gold standard for redox metabolite measurements 41
This distinction matters clinically: substituting non-chelated copper salts for GHK-Cu is not equivalent and carries meaningful toxicity risk
However, most treatments offer temporary rather than long-term relief
Subjects with obesity: significantly higher NNMT activity in adipose tissue and liver
Improves endurance and recovery from training
Wang L, Zhou W
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