Best Thiamine Supplements (2026)

Ranked by safety score and evidence coverage from 0 independent research sources

1335 Products Analyzed

0 Research Sources

96 Avg Safety Score

100% Evidence-Backed

What the Research Says

Thiamine (Vitamin B1) is an essential micronutrient with significant research interest in treating deficiency-related disorders and managing critical illness. Evidence suggests its efficacy in specific contexts like Wernicke-Korsakoff syndrome and its potential role in metabolic resuscitation during sepsis.

Wernicke-Korsakoff Syndrome: strong Sepsis and Septic Shock: moderate Type 2 Diabetes: moderate Depressive and Anxiety Disorders: moderate Heart Failure: insufficient

AI-generated summary based on 0 research sources. See methodology.

Top-Ranked Thiamine Products

Products ranked by safety score (0–100), then evidence coverage. Higher is better.

#	Product	Safety	Evidence	Form
1	B-1 100 mg Vitamin World	100	100%	Tablet or Pill
2	Vitamin B-1 100 mg Nature's Bounty	100	100%	Tablet or Pill
3	High Potency B1 100 mg Sundown Naturals	100	100%	Tablet or Pill
4	Bio-Cetin Forte Douglas Laboratories	100	100%	Capsule
5	Vitamin B-1 100 mg Supplement Nature Made	100	100%	Tablet or Pill
6	Vitamin B1 Whole Foods	100	100%	Tablet or Pill
7	Vitamin B1 100 mg Country Life	100	100%	Tablet or Pill
8	Benfotiamine-V 150 mg Benfotiamine.Net	100	100%	Capsule
9	Super B Complex Nature's Measure	100	100%	Tablet or Pill
10	Vitamin B-1 Thiamine 100 mg Martin Avenue Pharmacy	100	100%	Tablet or Pill
11	Vitamin B-1 100 mg Puritan's Pride Premium	100	100%	Tablet or Pill
12	Vitamin B-1 100 mg Rite Aid Pharmacy	100	100%	Tablet or Pill
13	Vitamin B-1 50 mg Rugby	100	100%	Tablet or Pill
14	B1 100 mg Thompson	100	100%	Tablet or Pill
15	B Complex CWS Pharmax	100	100%	Liquid
16	Vitamin B1 250 mg The Vitamin Shoppe	100	100%	Capsule
17	Vitamin B1 250 mg The Vitamin Shoppe	100	100%	Capsule
18	B-1 250 mg Vitamin World	100	100%	Tablet or Pill
19	Energy+ Sho	100	100%	Softgel Capsule
20	High Potency B Complex Rexall Naturalist	100	100%	Tablet or Pill

Showing top 20 of 1335 products. View all products →

How We Rank

Products are ranked by safety score (0–100), which considers UL exceedance, unsupported health claims, and proprietary blend disclosure. Products with equal safety scores are then sorted by evidence coverage — the percentage of ingredients backed by Tier-A or Tier-B research.

Safety scores are computed from product label data (DSLD) cross-referenced with 0 research sources. See our Editorial Policy for full methodology.