VitaminDB Data · August 2026
The real cost of Vitamin B9, per dose
For the exact same amount of Vitamin B9 — the same mcg of active ingredient — the priciest products cost a 9.3× premium over the cheapest. We measured it across 52 tracked products, normalized to cost per mcg.
Is the premium brand worth it?
On price, usually not. Two bottles of Vitamin B9 can carry the identical active dose at wildly different prices — the spread between the cheap and the premium end is 9.3× per mcg, from a low around $0.0000 to a high near $0.0003. A higher sticker price is not a reliable signal of a better product; most of that gap is branding and margin, not more Vitamin B9. Pay up only for a verifiable difference — third-party testing, or a specific better-absorbed form — never for the packaging.
Right now the best value in our catalog is Carlyle Folic Acid 400 mcg | 400 Tablets | Vegetarian at $0.01 per serving — against a catalog median of $0.158/serving.
How we calculated it
Cost per active unit = price ÷ (servings per container × dose per serving), measured in Vitamin B9’s dominant dose unit (mcg) so we only ever compare like with like — mcg of Vitamin B9 against mcg of Vitamin B9.
Spread = the 90th-percentile cost per mcg ÷ the 10th-percentile. Using the 10th/90th percentiles (not the absolute min/max) deliberately excludes one-off outliers and mislabeled listings. Based on 52 active Vitamin B9 products from our live Amazon US catalog, recomputed hourly. This is a value comparison, not medical or dosing advice.
Part of the catalog-wide supplement price-spread study (median 8.3× across 31 nutrients).
Free to cite
Quote these figures with a link back to this page. Key data point (as of August 2026): for the same dose of Vitamin B9, the priciest products cost 9.3× more than the cheapest per mcg, across 52 tracked products.
Vitamin B9 cost FAQ
- How much does Vitamin B9 vary in price for the same dose?
- For the same amount of Vitamin B9 (per mcg), the most expensive products cost about 9.3× more than the cheapest — based on 52 tracked products, comparing the 90th vs 10th percentile cost per mcg. The median is $0.0001 per mcg.
- Is the premium Vitamin B9 brand worth it?
- On price alone, usually not: the priciest options deliver the same mcg of Vitamin B9 for up to 9.3× the cost. A higher price is not a reliable quality signal — pay more only for a verifiable difference such as third-party testing or a specific better-absorbed form, not for packaging.
- What is the cheapest Vitamin B9 per dose right now?
- Carlyle Folic Acid 400 mcg | 400 Tablets | Vegetarian at $0.01 per serving is the lowest cost-per-dose Vitamin B9 in our catalog. See the full ranking on the Best Vitamin B9 page.