Niacin is a vitamin b3 niacin supplement that supports energy metabolism and cardiovascular health, helping you feel steadier energy and a healthier lipid balance through a trusted Natural Factors formulation.

Available Sizes & Variants:

90 tablets Niacin supplement - convenient daily bottle for ongoing support

Benefits & Features:

• Supports steady energy throughout the day.
• Niacin helps balance lipid profiles as part of a daily routine.
• Designed for daily use with minimal flushing risk.
• Manufactured under GMP with ISURA certification for purity, potency, and non-GMO status, giving you confidence.
• If you're new to niacin, starting at 100mg daily can be a simple, safe routine to support energy metabolism while you build a healthier lifestyle.

Natural Factors has earned a solid reputation for quality and transparency. The company runs GMP-grade manufacturing and features ISURA certified testing, with full transparency on purity and potency. Niacin, a vitamin b3 niacin, is the star ingredient, providing reliable support for energy metabolism and cardiovascular health. Their formulations avoid unnecessary fillers or artificial additives, making this a straightforward, trustworthy choice for daily supplementation, not rocket science. This approach fits into skincare routines and beauty products, not rocket science, helping you feel the benefits in everyday life.

Microcrystalline cellulose.

• GTIN: 68958012209
• Manufacturer: Natural Factors
• Categories: Cholesterol Lowering SupplementsNatural FactorsNew ArrivalsVitamin B3 (Niacin) Supplements & Tablets
• 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 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.