Vitamin B12/B-12 gives you energy and supports red blood cell production, powered by methylcobalamin, and it’s proudly produced in the UK to GMP standards for reliable quality. This is a simple, single ingredient supplement built for daily use, ideal for vegetarians and vegans. Lamberts has long stood for pharmaceutical grade quality, with careful formulation and strict UK manufacturing standards. Easy daily use.

Available Sizes & Variants:

100 tabs Vitamin B12 tablets - A handy daily dose for steady support.

Benefits & Features:

• Energy support for daily activities.
• Supports red blood cell production through the active methylcobalamin, making this vitamin b12 dietary supplement a steady energy ally.
• Promotes neurological function and nerve health for clarity and mood.
• Suitable for vegetarians and vegans, with allergen free formulation and careful testing.
• By supporting energy metabolism, this single ingredient tablet helps you stay alert throughout the day, while the UK GMP manufacturing and careful ingredient sourcing give you confidence in daily use.

Lamberts has built a strong reputation for pharmaceutical grade quality, with UK manufacturing under GMP standards and a simple, single ingredient approach. This vitamin B12 dietary supplement uses methylcobalamin to support energy, red blood cell production and nerve health, and it's suitable for vegetarians and vegans. The brand emphasises allergen-free formulations and reliable sourcing, making it a trusted everyday choice. Quality you can feel. Always traceable sourcing. For broader wellness, you might also explore vitamin d supplement options or best prenatal vitamins when planning a holistic routine.

Vitamin B12, tableted with; DiCalcium Phosphate, Cellulose, Silicon Dioxide, Stearic Acid, Magnesium Stearate.

• GTIN: 5055148401825
• Manufacturer: Lamberts
• Categories: LambertsNew ArrivalsVitamin B Complex Supplements & TabletsVitamin 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 tablet each day. As a dietary supplement\, take one capsule per day with a meal\, or as directed by your health care practitioner.

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

1. Supports nerve function and red blood cell production: Vitamin B12 is essential for the proper functioning of the nervous system and the production of healthy red blood cells.
2. Promotes energy production: This vitamin plays a key role in converting food into energy, making it an important nutrient for maintaining energy levels and combating fatigue.

The Active Ingredient Is: Vitamin B12 (Methylcobalamin)

Vitamin B12, also known as cobalamin, is a water-soluble vitamin essential for normal metabolic function and nervous system health. This product provides methylcobalamin, a naturally occurring form of the vitamin, and is manufactured in the UK to GMP standards for reliable quality.

This formulation is suitable for vegetarians and vegans and contains a single-ingredient profile without major allergens, reflecting its straightforward, pure nature.

What Does Vitamin B12 Do?

Vitamin B12 is involved in DNA synthesis, homocysteine metabolism, and the production of red blood cells, supporting normal energy metabolism and neurological function as recognised by NHS and EFSA guidance.

It contributes to the maintenance of nerve cells and plays a role in converting food into cellular energy, with references aligning to UK and EU nutrient function statements.

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

Lamberts is Welzo’s trusted partner for Vitamin B12 because of a long-standing track record of UK-based and GMP pharmaceutical standard manufacturing. This brand has earned a reputation for pharmaceutical-grade processes and precision, supported by facilities that prioritise reliability and safety across production. Lamberts' commitment to rigorous quality—including rapid disintegration testing and purity controls—highlights why we favour them over other suppliers. For Welzo, this translates into consistent batch quality and strong traceability within the supply chain, a cornerstone of consumer trust. This brand was evaluated by Welzo's healthcare professionals for compliance with our supplement quality standards, ensuring alignment with our high safety and effectiveness benchmarks.

The product from Lamberts meets Welzo’s criteria for a single-ingredient B12 option presented in a vegetarian/vegan-friendly formulation. The manufacturer’s emphasis on pharmaceutical-grade processes makes this brand a natural fit for a supplement used to support red blood cell production, immune function and energy metabolism, as reflected in the brand’s heritage and certification emphasis. This is why Welzo chose Lamberts over alternatives and how the partnership supports our commitment to quality and trust.