VitaminDB Data · August 2026
The real cost of Vitamin B1, per dose
For the exact same amount of Vitamin B1 — the same mg of active ingredient — the priciest products cost a 5.8× premium over the cheapest. We measured it across 52 tracked products, normalized to cost per mg.
Is the premium brand worth it?
On price, usually not. Two bottles of Vitamin B1 can carry the identical active dose at wildly different prices — the spread between the cheap and the premium end is 5.8× per mg, from a low around $0.0002 to a high near $0.0012. A higher sticker price is not a reliable signal of a better product; most of that gap is branding and margin, not more Vitamin B1. 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 BulkSupplements.com Thiamine Mononitrate Powder - Vitamin B1… at $0.02 per serving — against a catalog median of $0.150/serving.
How we calculated it
Cost per active unit = price ÷ (servings per container × dose per serving), measured in Vitamin B1’s dominant dose unit (mg) so we only ever compare like with like — mg of Vitamin B1 against mg of Vitamin B1.
Spread = the 90th-percentile cost per mg ÷ 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 B1 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 B1, the priciest products cost 5.8× more than the cheapest per mg, across 52 tracked products.
Vitamin B1 cost FAQ
- How much does Vitamin B1 vary in price for the same dose?
- For the same amount of Vitamin B1 (per mg), the most expensive products cost about 5.8× more than the cheapest — based on 52 tracked products, comparing the 90th vs 10th percentile cost per mg. The median is $0.0005 per mg.
- Is the premium Vitamin B1 brand worth it?
- On price alone, usually not: the priciest options deliver the same mg of Vitamin B1 for up to 5.8× 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 B1 per dose right now?
- BulkSupplements.com Thiamine Mononitrate Powder - Vitamin B1 Powder at $0.02 per serving is the lowest cost-per-dose Vitamin B1 in our catalog. See the full ranking on the Best Vitamin B1 page.