Vitamin B3 Niacin, 500 mg, 100 capsules

Name: Vitamin B3 Niacin, 500 mg, 100 capsules
Brand: Life Extension
SKU: 00372
Price: 4.02 USD
Availability: InStock
Rating: 4.6 (5 reviews)

Vitamin B3 Niacin, 500 mg, 100 capsules - Main image

Vitamin B3 is essential for hundreds of biological processes

$4.02 $6 In stock

Category: Immune Support

Our best-selling supplement for supporting already-healthy cholesterol levels contains niacin, which is crucial for supporting the healthy metabolism of glucose, fat and alcohol.

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Customer Reviews (4.6 / 5 · 5 reviews)

Ryan ★★★★★ Sep 6, 2026

The 500mg dose is easy to split for a lower flush, and I’ve noticed my post-meal energy feels steadier since starting it. Capsules are standard size, no aftertaste. Solid staple for anyone watching their metabolic health.

Ellie D. ★★★★★ Aug 24, 2026

Took these with dinner for about two weeks now and my digestion feels steadier, which makes sense since niacin is supposed to help with glucose and fat metabolism. The 500 mg dose is strong enough that I notice a mild flush about 20 minutes after taking it, but it fades fast and doesn't bother me. G

Miles Z. ★★★★★ Aug 23, 2026

The 500 mg capsules are easy to swallow and don’t leave that weird aftertaste some niacin pills have. I’ve been taking one daily for a few weeks to help with my cholesterol numbers, and my last blood work was the best it’s been in years.