This B-complex hits clinical-strength doses across the board for energy, brain function, and nervous system support. You're getting 100 mg each of **Thiamine**, **Vitamin B6**, and **Niacin**, plus 500 mg of **Pantothenic Acid** — all at or near the top of their studied ranges. **Folate** at 680 mcg comes as methylfolate, the bioactive form, which is a real advantage if your body doesn't convert folic acid efficiently.

**Vitamin B12** gives you methylcobalamin at 300 mcg — within clinical range but on the lower end. **Riboflavin** at 75 mg uses a mix of standard and active forms. The formula also includes 1,000 mcg of **Biotin** and 100 mg of **Inositol**, though the inositol is well below the 2,000–4,000 mg range used in mood and hormonal research.

The main tradeoff is B6 at 100 mg, which sits right at the tolerable upper limit. If you're taking other supplements containing B6, keep an eye on your total daily intake to avoid the risk of nerve-related side effects over time.

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BioStacks

Life Extension

BioActive Complete B-Complex

Capsule · 30 servings · $0.30/serving

81 / 100Excellent

Score Breakdown

Formulation
83
Safety
95
Final score
81/100

Ingredients (11)

9 scored · 2 not scored

Pantothenic Acid500 mg

Optimal dose · Premium form

Folate680 mcg DFE

Optimal dose · Premium form

Niacin100 mg NE

Within effective range

Vitamin B12300 mcg

Within effective range · Premium form

Biotin1000 mcg

Within effective range

Label Nutrition Facts

Active Ingredients

From the label · % Daily Value

DV%

Thiamine100 mg

8333%

Riboflavin75 mg

5769%

Niacin100 mg NE

625%

Vitamin B6100 mg

7692%

Folate680 mcg DFE

170%

Other Ingredients

Fillers, coatings, and additives

5Safe

Silicon DioxideAnti-caking

Safe

Microcrystalline CelluloseBinder

Safe

Purified WaterSolvent

Safe

Stearic AcidLubricant

Safe

Microcrystalline CelluloseBinder

Safe

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Sources & Scoring

Nutrient data (RDA, UL, and safety thresholds) sourced from: NIH Office of Dietary Supplements and 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. clinical 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.