Best Vitamin B3

Q: What is the typical cost per dose for Vitamin B3?

About $0.11 per serving across 61 tracked vitamin b3 products, ranging from $0.05 for the best deals to $0.20 for premium options.

The best vitamin b3 we track, ranked by real cost-per-dose — not paid placements. Across 61 tracked options the typical dose runs $0.11 per serving.

Prices checked Jun 25, 2026

Best valueVitamatic Niacin (Vitamin B3) 500mg,240 Tablets - Non-GMO & Gluten Free

<$0.001 per serving — the cheapest vitamin b3 dose we track.

$0.04

<$0.001/serving

Get deal

3rd-party testedNOW Foods Supplements, Niacinamide (Vitamin B-3) 500 mg, Energy…

Lab-verified brand at $0.001 per serving.

$0.07

$0.001/serving

Get deal

Full ranking by cost per dose

Cost-per-serving normalizes price across bottle sizes — a 60-count and a 365-count compare fairly. Top 20 of 50 shown.

#	Product	Form · dose	Servings	Price	$ / serving
1	Vitamatic Niacin (Vitamin B3) 500mg	tablet · 500mg	240	$0.04	<$0.001
2	21st Century Niacinamide 500 mg Prolonged Release…	tablet · 500mg	110	$0.04	<$0.001
3	ENDUR-ACIN - Niacin B3 - ER (Extended Release) 500 mg…	tablet · 500mg	200	$0.13	$0.001
4	NOW Foods Supplements, Niacinamide (Vitamin B-3) 500 mg…	capsule · 500mg	100	$0.07	$0.001
5	Nature's Bounty Niacin 500mg Flush Free	capsule · 500mg	120	$0.11	$0.001
6	Bluebonnet Niacin 100mg Vitamin B3 Nicotinic Acid…	capsule · 100mg	90	$0.10	$0.001
7	aSquared Nutrition Nicotinamide with Resveratrol - 120…	capsule · 500mg	120	$0.22	$0.002
8	21st Century, Niacin, 250mg, 110 Tabs	tablet · 250mg	110	$3.53	$0.03
9	21st Century, Niacinamide, 500mg, 110 Caps	capsule · 500mg	110	$3.53	$0.03
10	Source Naturals, Niacin, 100 mg, 250 Tabs	tablet · 100mg	250	$11.73	$0.05
11	Nutricost Niacin (Vitamin B3) 500mg	capsule · 500mg	240	$11.36	$0.05
12	Nutricost Niacin (Vitamin B3) 100mg	capsule · 100mg	240	$11.36	$0.05
13	21st Century, Niacin, 100 Mg, 110 Tabs	tablet · 100mg	110	$5.35	$0.05
14	Source Naturals, Niacin, 100 mg, 100 Tabs	tablet · 100mg	100	$5.08	$0.05
15	Source Naturals, Niacin, 250 mg, 250 Tabs	tablet · 250mg	250	$12.95	$0.05
16	Life Extension, Vitamin B3 Niacin, 500 MG, 100 caps	capsule · 500mg	100	$6.00	$0.06
17	Now Foods, Niacin, 500 mg, Tr 250 Tabs	tablet · 500mg	250	$16.79	$0.07
18	Major Pharmaceuticals, Dietary Supplement Niacin, 500…	tablet · 500mg	100	$6.95	$0.07
19	kindnature Vitamin B3 Niacinamide Gummies 500mg…	gummy · 500mg	3	$0.22	$0.07
20	Now Foods, Niacin, 500Mg, 100 Caps	capsule · 500mg	100	$7.74	$0.08

Frequently asked

What is the best-value Vitamin B3 supplement?+

Vitamatic Niacin (Vitamin B3) 500mg,240 Tablets - Non-GMO & Gluten Free — <$0.001 per serving ($0.04 for 240 servings), the lowest cost-per-dose vitamin b3 in our Amazon US catalog as of June 2026.

What is the typical cost per dose for Vitamin B3?+

About $0.11 per serving across 61 tracked vitamin b3 products, ranging from $0.05 for the best deals to $0.20 for premium options.