Best Vitamin B9

Q: What is the typical cost per dose for Vitamin B9?

About $0.11 per serving across 68 tracked vitamin b9 products, ranging from $0.03 for the best deals to $0.22 for premium options.

The best vitamin b9 we track, ranked by real cost-per-dose — not paid placements. Across 68 tracked options the typical dose runs $0.11 per serving.

Prices checked Jun 25, 2026

Best valueVitamatic Folic Acid 800 mcg - 500 Vegetarian Tablets - Vitamin B9

<$0.001 per serving — the cheapest vitamin b9 dose we track.

$0.02

<$0.001/serving

Get deal

3rd-party testedNature Made Folic Acid 400 mcg (665 mcg DFE) Dietary Supplement…

Lab-verified brand at <$0.001 per serving.

$0.02

<$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 Folic Acid 800 mcg - 500 Vegetarian Tablets…	tablet · 800mcg	500	$0.02	<$0.001
2	Nature Made Folic Acid 400 mcg (665 mcg DFE) Dietary…	tablet · 400mcg	250	$0.02	<$0.001
3	Vitamatic Folic Acid 1000 mcg (1 mg) - Vegetarian…	tablet · 1000mcg	240	$0.04	<$0.001
4	Nutricost Folic Acid (Vitamin B9) 1000 mcg, 240 Capsules	capsule · 1000mcg	240	$0.05	<$0.001
5	Iron Supplement for Women - Iron 65mg (Ferrous Sulfate…	capsule · 65mg	60	$0.28	$0.005
6	Garden of Life Vitamin Code Raw Iron Supplement - 30…	capsule · 22mg	30	$0.38	$0.01
7	21st Century, Folic Acid, 400 mcg, 250 Tabs	tablet · 400mcg	250	$5.88	$0.02
8	Nature's Blend, Folic Acid, 1000 mcg, 1000 Tabs	tablet · 1000mcg	1000	$23.97	$0.02
9	NOW Supplements, Folic Acid 800 mcg + B-12…	tablet · 800mcg	250	$6.11	$0.02
10	Now Foods, Folic Acid With Vitamin B-12, 800 Mcg, 250…	tablet · 800mcg	250	$6.45	$0.03
11	21st Century, Folic Acid, 800 mcg, 180 Tabs	tablet · 800mcg	180	$4.95	$0.03
12	Bronson Folic Acid 800 MCG Supports Prenatal Development	tablet · 800mcg	360	$9.99	$0.03
13	Foster And Thrive, Folic Acid, 400 Mcg, 250 Tabs	tablet · 400mcg	250	$6.99	$0.03
14	Source Naturals, Folic Acid, 800 mcg, 200 Tabs	tablet · 800mcg	200	$6.29	$0.03
15	Healthfare Folic Acid 400mcg \| 300 Veg Tablets \| Folate…	tablet · 400mcg	300	$9.99	$0.03
16	Nature's Truth, Folic Acid, 800 mcg, 250 Tabs	tablet · 800mcg	250	$8.84	$0.04
17	Nature's Bounty Folic Acid Supplement	tablet · 800mcg	250	$11.36	$0.05
18	Windmill Health, Folic Acid, 400 Mcg, 180 Tabs	tablet · 400mcg	180	$8.52	$0.05
19	Bronson Organic Folic Acid (Vitamin B9 Folate) 800 mcg…	tablet · 800mcg	180	$11.36	$0.06
20	Windmill Health, Folic Acid, 800 mcg, 100 Tabs	tablet · 800mcg	100	$7.45	$0.07

Frequently asked

What is the best-value Vitamin B9 supplement?+

Vitamatic Folic Acid 800 mcg - 500 Vegetarian Tablets - Vitamin B9 — <$0.001 per serving ($0.02 for 500 servings), the lowest cost-per-dose vitamin b9 in our Amazon US catalog as of June 2026.

What is the typical cost per dose for Vitamin B9?+

About $0.11 per serving across 68 tracked vitamin b9 products, ranging from $0.03 for the best deals to $0.22 for premium options.