BioStacks
NOW

C-1000 with 100 mg of Bioflavonoids

1 Capsule · 250 servings

iHerbAmazon
41 / 100Average

Best for

Immune

Score Breakdown

Formulation
41
Safety
100
Final score
41/100

Ingredients (3)

Vitamin C

100%

Dose

1000 mg

Target

250–2000 mg

Form

Budget

Citrus Bioflavonoid Complex

40%

Dose

100 mg

Target

250–1000 mg

Form

—

Rutin powder

10%

Dose

25 mg

Target

250–500 mg

Form

—

Other Ingredients (4)

Magnesium StearateLubricant

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

Silicon DioxideAnti-caking

Fine silica powder used to prevent clumping

HypromelloseCapsule

Plant-derived capsule material from cellulose

Stearic AcidLubricant

Saturated fatty acid used as tablet lubricant

Track this supplement in your stack

Get personalized insights, interactions, and coverage recommendations.

Get Started Free

Similar Supplements

Products that cover similar health dimensions based on their ingredients.

Supreme C Complex

Swanson

Supreme C Complex

🛡️ for Immune

43
Citrus Bioflavonoids

NOW

Citrus Bioflavonoids

🛡️ for Immune

39
High Absorption Vitamin C

Doctor's Best

High Absorption Vitamin C

🛡️ for Immune

84
Sustained Release Vitamin C with PureWay-C 500 mg

Doctor's Best

Sustained Release Vitamin C with PureWay-C 500 mg

🛡️ for Immune

84
Metabolic C 500 mg

Source Naturals

Metabolic C 500 mg

🛡️ for Immune

76

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.

BioStacks

Know exactly what's in your supplements.

Navigate

  • Home
  • App Store
  • Google Play

Resources

  • Terms of Service
  • Privacy Policy

Explore

  • Health Areas
  • Best Supplements
  • Nutrients
  • All Supplements

Popular Picks

  • Best Magnesium for Sleep
  • Best Collagen for Skin
  • Best Creatine for Muscle
  • Best Vitamin D for Bone Health
  • Best Probiotics for Digestion
  • Best CoQ10 for Heart
© 2026 BioStacks. All rights reserved. Not medical advice.