Niacin (Vit B3), 90 Capsules
90 Capsules
May be a fit for
- Adults seeking niacin to support healthy cholesterol metabolism
- Individuals using B3 to help maintain cardiovascular circulation
- Practitioners protocols requiring foundational niacin for NAD+ cofactor support
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Allergy Research Group's Niacin delivers vitamin B3 in its classic nicotinic acid form, a well-studied compound that supports healthy cardiovascular function, energy metabolism, and NAD+ production. Formulated for practitioners and health-conscious individuals who specifically seek the flush-form of niacin rather than a modified-release alternative.
Why It's Worth Considering: Allergy Research Group applies hypoallergenic manufacturing standards with minimal excipients, making this a clean option for those with sensitivities who still want straightforward nicotinic acid at a reliable dose across 90 capsules.
Allergy Research Group · 90 CapsulesMake it part of your routine.
As a dietary supplement, 1 capsule two or three times daily with meals, or as directed by a healthcare practitioner.
Important cautions & interactions
Keep in a cool, dry place, tightly capped.
Product details
Supplement facts & complete label
Serving Size:
1 capsule
Amount Per Serving:
Niacin ... 250mg
Other Ingredients:
Hydroxypropyl methylcellulose, L-leucine.
Label directions
As a dietary supplement, 1 capsule two or three times daily with meals, or as directed by a healthcare practitioner.
Label cautions
WARNING: Niacin can cause skin flushing and tingling (the "niacin flush"). DO NOT TAKE LARGE AMOUNTS OF NIACIN (GREATER THAN 1.5 GRAMS PER DAY) WITHOUT FIRST CONSULTING A HEALTHCARE PRACTITIONER.
Keep in a cool, dry place, tightly capped.
Source: authorized supplier original manufacturer label · September 06, 2026. Formulas and labels can change. Check the packaging you receive.
Who it may suit
May be a fit for
- Adults seeking niacin to support healthy cholesterol metabolism
- Individuals using B3 to help maintain cardiovascular circulation
- Practitioners protocols requiring foundational niacin for NAD+ cofactor support
- Those supporting skin barrier integrity with targeted vitamin B3 supplementation
Considerations
- High-dose niacin with liver conditions (monitor liver enzymes)
- B6 above 100mg/day long-term (risk of peripheral neuropathy)
- Active cancer treatment (some B vitamins may interfere — consult oncologist)
Compatibility & interactions
Works Well With
Ask Gabriel for personalized stacking recommendations.
Take Separately From
No significant interactions identified. Always consult your healthcare provider.
What to expect over time
Energy Boost
Noticeable improvement in energy levels
Mood & Stress
Reduced stress perception, better coping
Neurological
Improved cognitive clarity and focus
Homocysteine
Measurable homocysteine reduction (cardiovascular marker)
Based on B-complex supplementation research. Water-soluble — yellow urine color is normal and harmless.
Compare the options
Compare B-Vitamin Forms
Methylated vs Standard vs Synthetic
| Feature | Methylated (active) | Standard | Synthetic (cheap) |
|---|---|---|---|
| B12 Form | Methylcobalamin | Hydroxocobalamin | Cyanocobalamin |
| Folate Form | 5-MTHF (methylfolate) | Folinic acid | Folic acid (synthetic) |
| B6 Form | P-5-P (pyridoxal-5-phosphate) | Pyridoxal | Pyridoxine HCl |
| Best For | MTHFR variants, optimal absorption | General use | Budget (requires conversion) |
| MTHFR Safe | Yes — bypasses mutation | Mostly yes | No — cannot be converted by 40% of population |
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A few useful answers.
Research & further reading
More category questions
What does methylated mean and why does it matter?
Methylated B vitamins are in their active, bioavailable form — your body can use them immediately without conversion. About 40% of the population has MTHFR gene variants that impair conversion of synthetic folic acid to active folate. Methylated forms (methylcobalamin, methylfolate, P-5-P) bypass this issue entirely.
Why does my urine turn bright yellow after taking B vitamins?
This is completely normal and harmless. Riboflavin (B2) is a bright yellow fluorescent compound. When you take more than your body needs, the excess is excreted in urine, causing the distinctive color. It's actually a sign your body absorbed the B vitamins and is eliminating what it doesn't need.
Can I take B-complex in the evening?
B vitamins support energy production, so morning dosing is generally recommended. Some people find evening B-complex disrupts sleep due to increased energy. However, B6 and B12 are involved in melatonin production, so individual responses vary. If evening dosing doesn't affect your sleep, it's fine.
How do I know if I need B12 specifically?
Signs of B12 deficiency: fatigue, brain fog, tingling/numbness in extremities, balance issues, mood changes, and pale skin. At-risk groups: vegetarians/vegans (B12 is only in animal foods), adults over 50 (reduced absorption), and those taking metformin or PPIs (which deplete B12). A serum B12 test plus methylmalonic acid (more sensitive) can confirm.
Is it safe to take B vitamins every day?
Yes — B vitamins are water-soluble, meaning excess is excreted daily. No accumulation risk at standard supplement doses. The exception is B6 (pyridoxine): chronic doses above 100mg/day can cause peripheral neuropathy (nerve damage). The P-5-P form is safer at higher doses than pyridoxine HCl.
Supplement information is provided for education and is not a substitute for personalized medical advice. Supplements are not intended to diagnose, treat, cure or prevent disease. Read the current product label before use.