Doctor's Best Time-release Niacin with niaXtend, 500mg - 120 tablets

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

United Kingdom & Rest of the World Shipping Details:
Same day dispatch for orders placed by 2pm (Orders after 2pm dispatched 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 14 days in the same original and unopened packaging. Subject to T&C's.

Welzo is a UK-based health platform. Orders ship from the UK.

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.

*This product is not intended to diagnose, treat, cure, or prevent any disease.

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.