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Arthur Harden and William John Young discovered NAD+ in 1906 during research on yeast fermentation processes

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Injectable (subcutaneous) administration is used when systemic effects are desired

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Protocol 4: nasal spray approach Goal: Needle-free administration with acceptable bioavailability trade-off Duration: 20 days active, then 4-6 months off Schedule: Days 1-20: 10-15 mg epitalon intranasally, divided into 2-3 daily doses Days 21-180: Off cycle Repeat 1-2 times per year Formulation: Reconstitute in saline with 3 percent DMSO for improved nasal absorption

Learn how it fights bacteria, disrupts biofilms, supports immune health, promotes wound healing, and why researchers see it as a promising tool against chronic infections