BioStacks
Source Naturals

No-Flush Niacin 500 mg

1 Tablet · 60 servings · $0.20/serving

iHerbAmazon

Best for

Energy

Ingredients (2)

Niacin

100%

Dose

500 mg

Target

25–500 mg

Form

Budget

Inositol

7%

Dose

143 mg

Target

2000–4000 mg

Form

Budget

Other Ingredients (5)

SorbitolSweetener

A FODMAP sugar alcohol that may trigger GI discomfort (bloating, gas) in individuals with IBS or sorbitol malabsorption, even at small amounts found in supplements. Avoided in low-FODMAP diets.

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

Microcrystalline CelluloseBinder

Plant-derived cellulose used as a binder and filler in supplements

Stearic AcidLubricant

Saturated fatty acid used as tablet lubricant

How to Take It

Take it anytime

Trials dose 2 g twice daily — split it morning and evening rather than taking it all at once.

With or without food

On the label

1 tablet daily.

General guidance based on the ingredients, not a substitute for the label or your doctor.

Price Check

$11.94

$10$20$50

Cheaper than 69% of 103 vitamin B3 supplements

Track this supplement in your stack

Get personalized insights, interactions, and coverage recommendations.

Get Started Free

Similar Supplements

Flush Free Niacin

Horbäach

Flush Free Niacin

⚡ for Energy

79
No-Flush Niacin 500 mg Vegetable Capsules

Solgar

No-Flush Niacin 500 mg Vegetable Capsules

⚡ for Energy

79
Flush-Free Niacin 500 mg

Bluebonnet

Flush-Free Niacin 500 mg

⚡ for Energy

40
No Flush Niacin (Inositol Hexanicotinate) 800 mg

Life Extension

No Flush Niacin (Inositol Hexanicotinate) 800 mg

⚡ for Energy

40
No Flush Niacin 500 mg

Natural Factors

No Flush Niacin 500 mg

⚡ for Energy

40

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

  • Contact & Support
  • Pricing
  • Terms of Service
  • Privacy Policy
  • Refund 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.