Niacinamide 500 mg by NOW

Choose niacinamide 500 mg if you want vitamin B3 without the flushing that comes with niacin. It’s a good fit for people chasing steady cellular energy, especially if you train hard, drink alcohol regularly, eat a low-calorie or low-meat diet, or are targeting healthy aging via NAD status. If you were hoping for cholesterol changes, this isn’t the form—niacinamide doesn’t lower LDL or triglycerides on a lipid panel, and it’s used for maintenance, not lipid therapy.

Niacinamide (nicotinamide) is converted into NAD+ and NADP+ (cellular coenzymes that move electrons to make ATP, your cell’s usable energy, and to run antioxidant systems). Keeping these pools replete supports energy production in mitochondria and DNA repair enzymes. Unlike niacin (nicotinic acid), it doesn’t trigger the skin blood-vessel dilation that causes flushing, and it doesn’t act on lipids. Dermatology trials also used nicotinamide to help maintain normal skin cell turnover and immune surveillance in sun-exposed skin.

Take one capsule daily with a meal, as NOW suggests. If you’re sensitive to B vitamins on an empty stomach, food matters. For dermatology uses, studies often used 500 mg twice daily; discuss that higher total with your clinician. Most people notice steadier energy within 1–2 weeks. This is a maintenance-level dose; avoid stacking multiple B-complexes that already include high-dose vitamin B3.

If you have active liver disease or heavy alcohol use, avoid high-dose vitamin B3 and get liver enzymes like ALT checked before considering it. People with gout should be cautious at high doses because B3 can raise uric acid. If you have diabetes or insulin resistance, monitor fasting glucose and A1C when changing doses. Pregnancy and breastfeeding: stick to prenatal-level B3 unless your clinician advises otherwise.

Is this the same as niacin? No—niacinamide won’t cause flushing and won’t lower lipids. Can it help skin? Oral nicotinamide has evidence for non-melanoma skin cancer prevention at 500 mg twice daily in high-risk adults; for acne, topical forms have stronger data than oral. Does it raise NAD? Yes, it feeds NAD+ pathways, which is why it’s used in healthy aging programs.