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.

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BioStacks

Solgar

B-Complex with Vitamin C Stress Formula

Tablet · 125 servings · $0.18/serving

53 / 100Average

Score Breakdown

Formulation
53
Safety
100
Final score
53/100

Ingredients (12)

11 scored · 1 not scored

Niacin100 mg

Within effective range

Pantothenic Acid100 mg

Within effective range · Premium form

Biotin25 mcg

Partial dose · Premium form

Vitamin C500 mg

Within effective range · Budget form

Riboflavin10 mg

Partial dose · Budget form

Label Nutrition Facts

Active Ingredients

From the label · % Daily Value

DV%

Vitamin C500 mg

556%

Thiamine10 mg

833%

Riboflavin10 mg

769%

Niacin100 mg

625%

Vitamin B610 mg

769%

Other Ingredients

Fillers, coatings, and additives

7Safe

Silicon DioxideAnti-caking

Safe

Magnesium StearateLubricant

Safe

Carnauba WaxCoating

Safe

Microcrystalline CelluloseBinder

Safe

Microcrystalline CelluloseBinder

Safe

GlycerinHumectant

Safe

Stearic AcidLubricant

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.