Methyl B Complex delivers potent B vitamins in activated forms to back energy metabolism, nervous system function, and fatigue reduction, from Lamberts, a trusted brand.

Available Sizes & Variants:

60 tablets – daily support for energy and nervous system function.

Benefits & Features:

• Supports daily energy and reduces tiredness.
• Activated methylfolate and methylcobalamin boost absorption and support one carbon metabolism for mood and mental performance.
• Contains pyridoxal-5-phosphate and methylated B12 to help normal nervous system function.
• Quality you can trust, with GMP compliant manufacturing and transparent labelling, so you know exactly what you're taking.
• Designed for daily use, the formula supports energy production, DNA synthesis, and neurotransmitter function, helping you feel steadier through busy days and stressful moments too.

Born from Lamberts' long standing commitment to quality, Methyl B Complex sits alongside vitamin b12 supplements in many routines, offering high bioavailability with methylfolate and methylcobalamin. The star ingredients are supplied in activated forms to support methylation and energy production. Manufactured to pharmaceutical standards with batch testing and clear labelling, this nutritional food supplement aligns with vegan and allergen-conscious lifestyles. It's a trusted part of UK practice, valued for consistency and transparency across decades. Some buyers pair it with best prenatal vitamins under guidance.

Thiamin, Riboflavin, Niacin, Vitamin B6, Folate, Vitamin B12, Biotin, Pantothenic Acid, Inositol, Choline, Tableted With; Modified Starch, Cellulose, Tablet Coating (Hydroxypropyl Methylcellulose, Glycerin), Silicon Dioxide, Stearic Acid, Magnesium Stearate.

• GTIN: 5055148410698
• Manufacturer: Lamberts
• Categories: Best SellersLambertsNew ArrivalsSubscribe & Save Products
• 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 tablet daily with a meal.

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 nerve function and red blood cell formation. This methylcobalamin form is the metabolically active version that supports one-carbon metabolism and methylation processes in the body.

Often sourced as a dietary supplement to support energy metabolism, this form is recognised for its bioavailability and role in cellular functions related to nerve health and blood formation.

What Does Vitamin B12 Do?

Vitamin B12 contributes to normal energy production and the normal functioning of the nervous system, and supports the reduction of tiredness and fatigue in line with EFSA guidance.

In one-carbon metabolism, methylcobalamin participates in methylation processes that underpin neural function and cellular repair, aiding overall physiological function as described in nutrient-function guidance.

Lamberts Methyl B Complex was chosen as Welzo's partner for this supplement because this brand blends a strong UK heritage with a science-led approach to micronutrient formulations. This brand has built itself as a trusted source in clinical practice, underpinned by decades of experience in professional-grade nutrition products.

The manufacturer is known for sticking to rigorous quality standards and transparency in labelling, with a clear commitment to GMP compliance and batch testing. Lamberts focuses on pharmaceutical-grade quality and uses metabolically active B vitamins, aligning with our emphasis on integrity and traceability in ingredients. Our team evaluated Lamberts for reliability, consistency, and a track record of clear communication with clinicians and consumers alike.

This product is particularly well matched to Lamberts' strengths, using activated (methylated) B vitamins to support efficient absorption and utilisation. Welzo selected this brand because of its proven manufacturing excellence, robust quality controls, and ongoing commitment to safety and integrity. This collaboration is supported by Welzo's healthcare professionals and our ingredient quality and purity standards Welzo's healthcare professionals and our ingredient quality and purity standards.