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All treatments at Arrowhead Medical & Wellness Center are supervised by licensed medical professionals, so you can feel confident in the care you receive

This product is intended exclusively for qualified researchers, laboratories, and institutional research environments

10.1177/0960327115578864 Hum Exp Toxicol

Elife 4 , e05464 (2015)

Involved in cellular signaling and regulating calcium levels, CD38 degrades NAD + , using it as a co-substrate for its enzymatic activity 135,136

However, according to the National Institutes of Health, upwards of 15% of people are deficient in vitamin B12 and some studies indicate that number may be higher