Niacin 100mg, 90 Tablets - Natural Factors

Microcrystalline cellulose.

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 with food, 1 to 5 times daily, or as directed. Two soft gels daily\, with food\, or as directed by your health care professional or pharmacist. For ultimate support\, take two soft gels with food twice daily.

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

The Active Ingredient Is: Vitamin B3 (Niacin)

Vitamin B3, also known as niacin, is a water-soluble nutrient essential for everyday energy metabolism and cellular function. Niacin in supplement form is usually supplied as the bioactive nicotinic acid form.

This product provides a typical bioactive dose of niacin as nicotinic acid to support everyday metabolic processes; the formulation emphasises purity with no artificial additives.

What Does Vitamin B3 Do?

Vitamin B3 plays a part in energy production and helps support normal cardiovascular function in line with EFSA guidance. It also contributes to normal fat metabolism and nervous system function as part of a balanced diet.

In nutritional science, niacin is recognised for its role in NAD and NADP coenzyme systems that are central to cellular energy reactions and metabolism.

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

Here's why Natural Factors Niacin Welzo Selected

Natural Factors stood out in our review for its long-standing reputation as a reliable North American maker with a track record of quality and professional endorsement. The brand is recognised for teaming up with respected scientific and clinical experts, which reinforces its industry standing and reliability for consumers wanting consistent, transparent sourcing.

This brand keeps strict quality standards and uses GMP and pharmaceutical-grade manufacturing practices, with ISURA third‑party testing that covers a wide range of contaminants. Their commitment to lab testing for safety, purity and potency, together with non‑GMO transparency, aligns with Welzo’s insistence on rigorous quality controls and traceability. For customers seeking reliable vitamin B3 supplementation, Natural Factors’ focused, stigma-free formulation philosophy supports a straightforward product experience.

We chose Natural Factors because of their proven quality commitment, robust testing protocols, and the brand’s ability to deliver a straightforward 100 mg niacin product with clear integrity. This partnership is strengthened by our team of medical experts our team of medical experts and backed by our rigorous testing protocols, ensuring you receive a trusted and well-supported supplement.