Each capsule delivers 100mg of **Benfotiamine** — a fat-soluble form of vitamin B1 that absorbs up to 5x better than standard thiamine because it bypasses the intestinal transport bottleneck. At one capsule you're already within the clinical range (80–300mg), and the label's four-capsule daily recommendation puts you at 400mg, well above what most studies use for supporting healthy blood sugar metabolism and protecting nerve tissue from glycation damage.

The 25mg of standard **Thiamine Hydrochloride** per capsule adds a water-soluble baseline, giving your body both absorption pathways. At the full daily dose of 100mg thiamine HCl, you're at the top of the typical B1 supplement range — though benfotiamine is doing the heavy lifting here for energy and nerve support.

The tradeoff is pill burden. Four capsules a day is the label recommendation, and skipping down to one or two still keeps you in a useful range for benfotiamine — but you'd lose the higher-end thiamine coverage. If you're taking this specifically for nerve health or blood sugar support, the full four capsules is where the research points.

BioStacks
Life Extension

Benfotiamine 100 mg with Thiamine

1 Capsule × 4/day · 120 servings

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What it does

Vitamin B1

Mixed formsGrade —

Helps the body release energy from food and supports normal cell function.

Energy
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Ingredients (2)

Other ingredients

Silicon DioxideAnti-caking

Fine silica powder used to prevent clumping

Magnesium StearateLubricant

A salt of stearic acid used as a lubricant in tablet and capsule production

Microcrystalline CelluloseBinder

Plant-derived cellulose used as a binder and filler in supplements

Microcrystalline CelluloseBinder

Plant-derived cellulose used as a binder and filler in supplements

Lab testing

How to take it

With food
Label directs 4 servings — keep one for the morning

On the label

Directions: Take one (1) capsule four times daily, or as recommended by a healthcare practitioner.

Price check

$15.00

$10$20

Near the median of 57 vitamin B1 supplements

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Sources & Scoring

Nutrient data (RDA, UL, and safety thresholds) sourced from the NIH Office of Dietary Supplements and the National Academies Dietary Reference Intakes (DRI).

This is not medical advice. Consult a healthcare provider before making changes to your supplement routine.

The score analyzes what's on the label: ingredient doses vs. studied ranges, chemical forms, evidence levels, and known interactions. It does not verify label accuracy or test for contaminants — for that, look for third-party certifications like USP or NSF.

Not medical advice. Consult your healthcare professional.

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