ENDUR-ACIN - Niacin B3 - ER (Extended Release) 250 mg - Nicotinic Acid - Healthy Heart & Cholesterol Balance Supplement - Low-Flush High-Potency Niacin with 4-8 HR Timed-Release Matrix - 200 Tablets

Why Choose Extended-Release Niacin Over Standard Niacin?

Standard immediate-release niacin can cause a temporary but uncomfortable flushing reaction—redness, warmth, or tingling of the skin—as blood vessels dilate. Extended-release niacin, like ENDUR-ACIN, is formulated to release the vitamin slowly, reducing the likelihood and intensity of flushing while still providing the same health benefits. This makes it an excellent choice for individuals who want the support of niacin without the discomfort.

What Is ENDUR-ACIN Extended-Release Niacin?

ENDUR-ACIN is a high-potency vitamin B3 (niacin) supplement formulated as nicotinic acid in an extended-release matrix. Each tablet provides 250 mg of niacin—a water-soluble vitamin essential for converting food into energy, maintaining healthy skin, and supporting nervous system function. The extended-release design delivers niacin gradually over 4 to 8 hours, which helps minimise the flushing sensation commonly associated with immediate-release niacin.

Trusted by clinicians nationwide, ENDUR-ACIN is manufactured by Endurance Products, a family-owned company with over 45 years of experience in the supplement industry. All products are made in the USA and are free from gluten, sugar, starch, artificial flavours, colours, sweeteners, and preservatives, making them suitable for various dietary needs.

Potential Side Effects and Safety Considerations

Niacin is generally well tolerated, but some people may experience mild side effects such as flushing, itching, or gastrointestinal discomfort. These effects often diminish with continued uses. Doses above 50 mg may require medical supervision. Consult your health care provider before starting any new supplement, especially if you are pregnant, nursing, taking medication, or have a medical condition. If you experience persistent or severe flushing, discontinue uses and speak with your doctor.

How Does Niacin Support Heart Health and Cholesterol Balance?

Niacin plays a key role in energy metabolism and cellular function. Research indicates that niacin contributes to the maintenance of normal blood HDL-cholesterol concentrations.* It may also promote a favourable balance of lipids when used as part of a heart-healthy lifestyle.

*These statements have not been evaluated by the Medicines and Health care products Regulatory Agency (MHRA). This product is not intended to diagnose, treat, , or prevent any disease.

Recommended Dosage and How to Take ENDUR-ACIN

Each bottle contains 200 tablets, each with 250 mg of extended-release niacin. The typical starting dose is one tablet daily with food, as directed by a health care professional. Because niacin can affect individuals differently, it is important to begin with a low dose and gradually increase as tolerated. Do not exceed the recommended serving size. For best results, swallow the tablet whole—do not crush or chew—to preserve the extended-release properties.

Frequently Asked Questions

Is ENDUR-ACIN suitable for vegans?

Yes, ENDUR-ACIN is vegan-friendly and contains no animal-derived ingredients.

Can I take ENDUR-ACIN if I have a gluten sensitivity?

Absolutely. This product is gluten-free and formulated without common allergens.

How long does one bottle last?

With a typical serving of one tablet per day, a 200-tablet bottle provides over six months of supply.

Should I take ENDUR-ACIN with food?

Taking niacin with food may help reduce any mild gastrointestinal discomfort. Follow the guidance on the label or your health care provider's recommendation.

How to Choose a High-Quality Niacin Supplement

When selecting a niacin supplement, consider the form (nicotinic acid vs. niacinamide), the release mechanism (immediate vs. extended), and the purity of ingredients. ENDUR-ACIN stands out for its extended-release matrix, which promotes gentle absorption and low-flush benefits. The product is third-party tested for quality and potency, and it is made without unnecessary additives. Look for certifications like gluten-free and vegan to match your dietary preferences.