This B-complex pairs **Vitamin C** at 500mg with a full range of B vitamins, targeting energy and stress support. **Niacin (B3)** at 100mg and **Pantothenic Acid (B5)** at 100mg are both well within clinical ranges for energy metabolism and adrenal support. The **Vitamin C** dose is solid for immune function and antioxidant protection, though the ascorbic acid form absorbs less efficiently above this dose level.

The weaker spots are where it matters most for a stress-labeled B-complex. **Vitamin B12** is dosed at just 25 mcg as cyanocobalamin — the typical supplemental range starts at 250 mcg, so you're getting about 10% of what most B-complex products deliver. **Folate** provides only 100 mcg of folic acid (a synthetic form that up to half the population converts poorly), well below the 400 mcg RDA. **B1**, **B2**, and **B6** all sit at 10mg, below the 25mg minimum you'd typically see in a dedicated B-complex.

If you're looking for meaningful B-vitamin support for stress or energy, the doses here fall short on several key vitamins — particularly B12 and folate. The B5, B3, and Vitamin C are the real contributors in this formula.

BioStacks
Solgar

B-Complex with Vitamin C Stress Formula

2 Tablets · 125 servings · $0.18/serving

iHerbAmazon

Best for

General Health

Ingredients (12)

Pantothenic Acid

100%

Dose

100 mg

Target

50–500 mg

Form

Premium

Niacin

100%

Dose

100 mg

Target

25–500 mg

Form

Standard

Vitamin B6

40%

Dose

10 mg

Target

25–100 mg

Form

Premium

Biotin

3%

Dose

25 mcg

Target

1000–5000 mcg

Form

—

Vitamin C

100%

Dose

500 mg

Target

250–2000 mg

Form

Budget

Other Ingredients (7)

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

Carnauba WaxCoating

Hard plant wax from the carnauba palm used to glaze gummies and tablets

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

GlycerinHumectant

Sweet-tasting liquid used in soft capsules and liquids

Stearic AcidLubricant

Saturated fatty acid used as tablet lubricant

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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.

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