Doctor's Best Time-release Niacin with niaXtend delivers a gentle, time release form to help cardiovascular health and easy on the stomach, backed by science-based nutrition and vegan, non-GMO quality standards.

Available Sizes & Variants:

120 tablets - Convenient daily dose

Benefits & Features:

• Promotes a healthier lipid profile.
• Sustained release minimises flushing while keeping your daily routine comfortable and simple.
• Key active ingredient niacin is delivered in a controlled-release form to support cardiovascular health while minimising flushing, making it more likely you'll stay consistent with your daily routine.
• Quality is guaranteed by vegan and non-GMO standards backed by science.
• Designed to integrate into a busy lifestyle, with niaXtend technology that supports steady absorption.

Doctor's Best has built trust through science-based nutrition and transparent ingredients. Well, niaXtend, a registered ingredient from Endurance Products Company, drives the sustained-release delivery for steady absorption and reduced flushing. The range is vegan, non-GMO, and produced to high quality standards, to be honest. If you're already taking a vitamin d supplement, this niacin product can fit neatly into your daily routine.

Vegetable Waxes (Rice Bran and/or Carnauba Wax), Stearic Acid, Magnesium Stearate (Vegetable Source), Silica

• GTIN: 753950002425
• Manufacturer: Doctor's Best
• Categories: Cholesterol Lowering SupplementsDoctor's BestVitamin B3 (Niacin) Supplements & TabletsXtend Supplements
• Best buy: 6 - 24 months+

United Kingdom Shipping:

Orders placed by 2pm (Monday to Friday) are dispatched the same day. Orders placed after 2pm will be dispatched the next working day.

Free shipping on orders over £50 to the UK.

Returns: Our products are meant to make you feel healthy and at your best. If you need to return your item, you can do so free of charge within 30 days in the same original and unopened packaging. Subject to T&C's.

Take 1 tablet daily with food, or as recommended by a healthcare professional. Store in a cool, dry place out of reach of children. If you are pregnant, nursing, have a medical condition, or are taking medication, consult your doctor before use. Temporary flushing, warmth, itching, or redness of the skin may occur, especially with initial use. Avoid high doses of niacin if you have liver or kidney disease. Do not exceed the recommended daily intake. This supplement should not be used as a substitute for a balanced and varied diet.

Please consult the product packaging for accurate instructions on how to use the product.

The Active Ingredient Is: Vitamin B3 (Niacin) as Nicotinic Acid

Vitamin B3, also known as niacin, is a water-soluble vitamin essential for normal energy metabolism and cellular function. This sustained-release form delivers niacin as nicotinic acid to support body systems involved in metabolism.

Form and source information: the ingredient is presented as sustained-release niacin (nicotinic acid). This approach aims to provide a gradual release while maintaining nutrient activity within standard dietary considerations.

What Does Vitamin B3 Do?

Vitamin B3 is involved in normal energy production and metabolism of fats, carbohydrates and proteins. Scientific evidence suggests it supports normal lipid parameters and cardiovascular health as part of a balanced diet, with the sustained-release form designed to improve tolerability.

Research indicates that Niacin can influence lipid profiles and cardiovascular markers, with findings reported by Dr. Bruckert of the University of Paris, illustrating the nutrient’s role within lipid management strategies.

Niacinas Nicotinic Acid: 500 mg

Doctor’s Best is the brand we chose for this sustained-release niacin because, compared with other options, it sits rooted in science-based nutrition and a clear commitment to quality standards. The brand is recognised for its vegan, non-GMO foundation, which lines up with our emphasis on responsible sourcing and transparent formulation practices. Our expert team of doctors, nurses, and nutritionists have evaluated this brand for credibility and safety, and we favour partners with established reputations in the supplement space.

The manufacturer’s use of niaXtend, a registered ingredient, signals traceability and a structured approach to ingredient quality, while the product itself is designed to minimise common tolerability barriers through a sustained-release format. This aligns with our standards for reliability and consumer experience. For the British market, Doctor’s Best demonstrates a thoughtful manufacturing philosophy that supports consistent quality and accessibility, reinforcing why this brand stands out in our portfolio. Our vetting process, conducted by our expert team of doctors, nurses, and nutritionists, and grounded in the certifications we require, confirms this is a robust partner for this supplement.