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Importantly, supplementation can **increase** measurable NAD+ metabolism: in a 2018 randomized, placebo-controlled crossover trial published in Nature Communications by Martens and colleagues at the University of Colorado Boulder (24 healthy middle-aged and older adults), 1,000 mg/day of the NAD+ precursor nicotinamide riboside (500 mg, twice daily) elevated NAD+ in blood cells by roughly 60% versus placebo over 6 weeks, with no serious adverse events reported

For patients dealing with severe chronic illness, whose internal synthesis pathways are often already compromised by genetic mutations or viral damage, relying on standard glutathione supplements is rarely enough to move the clinical needle

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Each BPC-157 research compound batch is independently verified to 99% HPLC purity, as listed in the Compound Specifications on this page