Doctor's Best Fully Active B Complex with Quatrefolic 30 Veggie Capsules

Other Ingredients - Hypromellose (vegetarian capsule), micro crystalline cellulose, magnesium stearate (vegetable source), silicon dioxide.
Free From - Gluten Free, Soy Free

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 one capsule each day with food, or follow the advice of a knowledgeable physician.

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

The Active Ingredient Is: Vitamin B12 (Methylcobalamin)

Vitamin B12 is a water-soluble vitamin essential for normal metabolic function and energy production.

This form is methylcobalamin, a bioavailable version of B12, used in this complex alongside other bioactive B vitamins to support cellular metabolism.

What Does Vitamin B12 Do?

Vitamin B12 contributes to normal energy-yielding metabolism and supports the normal function of the nervous system, in line with EFSA guidance. It also aids in the normal metabolism of homocysteine.

As a cofactor in mitochondrial energy production, B12 participates in essential enzymatic steps to support everyday vitality.

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

Dietary supplements are not a replacement for a balanced diet. Do not take more than the recommended amount. Keep in a cool, dry area away from light and heat. Ensure they are out of children's reach and view.

This brand’s science-led approach and established reputation set the standard for high-quality B‑vitamin nutrition. Doctor’s Best is recognised for formulating with advanced ingredients like Quatrefolic, a highly soluble bioactive folate, which aligns with our aim to offer optimised nutrient bioavailability and traceability in critical components.

Welzo’s medical team evaluated Doctor’s Best through our rigorous vetting process, considering formulation strength, transparency of ingredient sourcing, and a commitment to non‑GMO, gluten‑free, soy‑free and vegan statements. This is reinforced by the brand’s emphasis on “Science‑Based Nutrition” and modern, high‑potency B‑vitamin combinations that support the intended daily value targets in a single capsule.

We selected Doctor’s Best because their focus on bioavailable forms and branded ingredients differentiates them from competitors, offering consistency, traceability and a clear quality narrative. This aligns perfectly with this product’s needs and our standards, ensuring reliability for customers seeking an active, well‑rounded B‑complex supplement. This brand was evaluated by Welzo's healthcare professionals for compliance with our ingredient quality and purity standards.