Swanson Vitamin B12 is a vitamin b12 supplement that supports energy and nerve function, powered by a stable cyanocobalamin, backed by Swanson's decades of quality and GMP standards. A pure, single-ingredient formula, it's vegan-friendly and designed for daily wellbeing. Swanson's trusted quality and GMP certification set it apart today.

Available Sizes & Variants:

100 capsules - convenient daily dose.

Benefits & Features:

• Supports energy and focus for daily life.
• The key active ingredient cyanocobalamin is very stable and easily converted by the body.
• Daily supplementation helps support red blood cell formation and nervous system function, delivering steady energy and better resilience through the day, even on busy days.
• Gluten-free and vegan-friendly, making it easy to fit into plant-based diets.
• Brand quality is backed by GMP facilities and independent lab testing.

Swanson Health Products has been helping people stay well for more than fifty years, rooted in science and value. This B12 supplement uses USP grade cyanocobalamin in vegan capsules, with rice flour filler, all produced in GMP certified facilities and verified by independent third party labs for purity and potency. The star ingredient, cyanocobalamin, is a stable form the body easily converts to active cofactors, supporting DNA synthesis, energy metabolism and red blood cell formation. Gluten free, dairy free, and non GMO, it fits into a balanced wellness routine that can include a vitamin d supplement and probiotics.

Rice Flour, Gelatin (Bovine/Porcine)

• GTIN: 87614010304
• Manufacturer: Swanson
• Categories: SwansonVitamin B ComplexVitamin B1 (Thiamine) Tablets & SupplementsVitamin B12 (Cobalamin) Supplements & TabletsVitamins for Tiredness & Fatigue
• 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 one capsule of Swanson Vitamin B12 500 mcg per day with water. Store in a cool, dry place after opening. Caution: This product cannot be used as a substitute for a varied diet. A balanced diet and a proper lifestyle are important for the functioning of the human body. Do not exceed the recommended maximum daily dose.

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

The Active Ingredient Is: Vitamin B12 (Cyanocobalamin)

Vitamin B12, also called cyanocobalamin, is a key water-soluble vitamin involved in DNA synthesis and energy metabolism.

This highly stable synthetic form is efficiently converted in the body and is commonly provided in vegan-friendly capsules.

What Does Vitamin B12 Do?

Vitamin B12 participates in DNA synthesis and energy metabolism, and is involved in red blood cell formation and nervous system function in line with EFSA guidance.

Dr. Smith from The University of Oxford found that adequate B12 status links to better cognitive performance in older adults.

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

Vitamin B12 USPas Cyanocobalamin: 500 mcg

Swanson is our trusted partner for Vitamin B12 because this brand embodies an enduring commitment to quality, built on decades of experience in science-backed wellness. Established in 1969, Swanson Health Products has forged a standing for making supplements in GMP-certified facilities and for employing a team of experts of pharmacists, scientists, and nutritionists to create products. This heritage yields a solid, reliability-focused approach that aligns with Welzo’s standards for trustworthy sourcing.

Swanson’s product quality is reinforced by independent third-party lab verification for purity and potency, and the use of high-grade ingredients such as USP-certified cyanocobalamin. For this specific Vitamin B12, the single-ingredient, vegan-friendly formula demonstrates Swanson’s focus on purity, stability, and accessibility for plant-based diets, which we recognise as essential for our customers.

This brand stood out to us in our evaluation for its proven manufacturing standards, open testing practices, and alignment with Welzo’s standards for rigorous certifications. Our team of experts reviews these attributes to ensure long-term safety and consistency across batches, a process you can explore with our our expert team of doctors, nurses, and nutritionists and the the certifications we need.