Despite the name, this B complex is missing two key players: **Vitamin B12** and **Folate** are completely absent. Of the B vitamins included, only **Niacin** at 50mg lands within the typical clinical range (25–500mg). **Thiamine**, **Riboflavin**, **Vitamin B6**, and **Pantothenic Acid** are all dosed at 20–60% of the studied effective range, so you're getting partial amounts across the board.

**Vitamin C** at 300mg is the strongest ingredient here — a reasonable daily dose for immune and antioxidant support, though the ascorbic acid form absorbs less efficiently at higher doses. The 175mg of **Calcium** from carbonate requires stomach acid to absorb and covers less than 18% of your daily needs.

The biggest gap is the missing B12 and folate. These two work together in red blood cell formation and nervous system function, and their absence means this product can't serve as a complete B complex. If you're looking for full B-vitamin coverage, you'd need to supplement those separately.

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BioStacks

21st Century

B-Complex plus Vitamin C

Tablet · 100 servings · $0.07/serving

50 / 100Average

Supports

Score Breakdown

Formulation
50
Safety
100
Final score
50/100

Ingredients (7)

Niacin50 mg

Within effective range

Pantothenic Acid10 mg

20% of effective dose · Premium form

Vitamin C300 mg

Within effective range · Budget form

Riboflavin14.3 mg

Partial dose · Budget form

Vitamin B65 mg

Partial dose · Budget form

Label Nutrition Facts

Active Ingredients

From the label · % Daily Value

DV%

Vitamin C300 mg

333%

Thiamine15 mg

1250%

Riboflavin14.3 mg

1100%

Niacin50 mg

313%

Vitamin B65 mg

385%

Other Ingredients

Fillers, coatings, and additives

3Safe

Microcrystalline CelluloseBinder

Safe

Croscarmellose SodiumDisintegrant

Safe

Stearic AcidLubricant

Safe

Contains <2% of (header)

Unknown

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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.