Niacinamide is a form of vitamin B3
Niacinamide, also called nicotinamide, is one of the common forms of vitamin B3. The body uses niacin-derived compounds to make coenzymes involved in metabolic reactions. NAD and NADP participate in oxidation-reduction processes that help cells transfer chemical energy and carry out other functions.
Because NAD is important to metabolism, it appears frequently in discussions of aging and cellular energy. That interest should not be confused with proof that taking a particular amount of niacinamide raises useful NAD activity in every tissue or improves energy in a healthy person.
What the product label transcription says
The September 2026 label transcription lists 200 mg of niacinamide per two-capsule serving. The NIH Office of Dietary Supplements explains that nicotinamide does not cause the flushing associated with nicotinic acid, although very high intakes can produce other adverse effects. The NIH fact sheet also describes an adult upper intake level of 35 mg per day for supplemental niacin, a level based on flushing effects and applied to supplemental forms for population guidance. The interpretation for niacinamide is not identical to the flushing effect of nicotinic acid.
Make the dose part of the review
Because the listed amount is above the general supplemental upper intake level, a person considering the product should review other sources of niacin and ask a healthcare professional whether the dose makes sense for their circumstances. A clinician can consider the total supplement routine, medical history, and any relevant laboratory monitoring.
Do not combine multiple high-dose B-vitamin products simply because each one is sold over the counter. More is not automatically better, and the fact that a nutrient participates in metabolism does not establish that additional intake improves day-to-day vitality.