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Research suggests GHK-Cu is active at quite low concentrations - as little as 0.001% in some studies

Beyond energy production, NAD+ also supports several important biological processes including: Activating longevity pathways called sirtuins Supporting DNA repair mechanisms Improving mitochondrial function Helping regulate metabolic health Unfortunately, NAD+ levels naturally decline as we age

What started out as a passion, turned into launching Costello's Health Distributors which led to it's evolution into Optimum Nutrition -- a 23-year success story -- to the Nutrivo brand in 2013 that it is today

Glutathione also plays roles in detoxification, immune function, and cellular redox balance

Patients with a sluggish metabolism or difficulty losing weight despite lifestyle efforts