THIS HOLIDAY SEASON, GIVE THE GIFT OF HEALTH – ProHealth's science-backed supplements make a meaningful Christmas present for loved ones focused on longevity, energy, and well-being. QUALITY YOU CAN TRUST SINCE 1988 – Proudly manufactured in the USA and triple-tested for purity and potency. Every batch is verified by independent third-party labs, with full results published online for complete transparency and your peace of mind. Ultra-High Quality: 3rd-party lab tested (see images for independent lab Certificate of Analysis). Certified free of contaminants, heavy metals, filler, toxins and byproducts. Compared to other NR products like NR Hydrogen Malate, our nicotinamide riboside is made without any chemical solvents, so there is no chance of solvent residue or contamination in your supplements for optimal nutrient absorption and utilization in your body to support your health and longevity goals. Clinical Doses: NR supplement containing ingredients and dosing supported with clinical research for the needs of people 40 . 300 mg NR and 100 mg TMG for enhanced performance. Each serving of our NR Pro 300 was formulated using the highest-quality and highest-purity ingredients and combined in biologically appropriate doses supported by research to safely tackle age-related health issues and support a healthier life. TMG: 150 mg per serving supports methylation. Betaine anhydrous, or trimethylglycine (TMG) acts as a methyl donor - critical if you're taking NAD precursors that need methyl donors to be effective. Many top anti-aging experts suggest that safeguarding against methyl depletion may be a wise proactive step to augment your NR intake. TMG, the choice of many of those experts, is an excellent way to help support your body's ability to maintain an adequate methyl pool and support liver detoxification. NR Supplement: NAD activator that supports cellular function, heart and brain health for individuals looking to support vitality and energy. NAD production in cells declines at a rate of 1 per year. Reduced levels of NAD contribute to a variety of age-related health concerns, including impaired heart health, reduced energy and cognitive decline. NR may support these processes, promoting overall health and longevity.