Vitamin B-100 Complex is a high potency vitamin B complex that supports normal energy release and helps reduce tiredness, thanks to its brain supporting blend and reliable UK quality standards.

Available Sizes & Variants:

60 tablets - Standard daily supply for ongoing use.

Benefits & Features:

• Supports steady energy release for busy days.
• Includes methylcobalamin, the active form of B12, plus brain supporting choline and inositol to support brain function and nervous system health.
• Designed for daily use with high potency B vitamins to help reduce tiredness and support immune function.
• Vegan friendly and allergen aware.
• Manufactured in UK GMP facilities with rigorous QA, ensuring ingredient authentication and allergen controls, so you can trust each tablet to support your daily energy and mood.

Lamberts has earned a trusted reputation in the UK for high quality vitamins for decades. This vitamin B complex is built in UK GMP facilities with strict allergen controls, ensuring purity and consistency. It includes methylcobalamin, brain supporting choline and inositol, and a vegan friendly formulation that makes it easy to fit into everyday routines. The result is a reliable multi vitamin option that supports energy, mood, and metabolic health.

Thiamin (Vitamin B1), Niacin (as Nicotinamide), Folic Acid, Biotin, Choline Bitartrate, PABA, Riboflavin (Vitamin B2), Pyridoxine (Vitamin B6), Methylcobalamin (Vitamin B12), Pantothenic Acid, Inositol. Tableted With: DiCalcium Phosphate, Cellulose, Hydroxypropyl Methylcellulose, Crosslinked Cellulose Gum, Tablet Coating: (Hydroxypropyl Methylcellulose, Glycerin), Silicon Dioxide, Stearic Acid, Magnesium Stearate.

• GTIN: 5055148400316
• Manufacturer: Lamberts
• Categories: LambertsNew ArrivalsVitamin B Complex 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 one tablet each day. One capsule before lunch and one at bedtime or as directed

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

The Active Ingredient Is: Vitamin B12 (Methylcobalamin)

Vitamin B12, in its methylcobalamin form, is a water-soluble vitamin crucial for everyday nervous system functioning and metabolic processes.

This form is the bioactive variant of B12 often used in supplements to support brain health and energy-related functions.

What Does Vitamin B12 Do?

Vitamin B12 plays a role in everyday energy metabolism and nervous system maintenance, which may help support overall vitality and cognitive function in line with EFSA guidance.

Research indicates B vitamins contribute to everyday psychological function and immune system support, while also helping reduce tiredness and fatigue under typical dietary conditions.

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

We chose Lamberts as our partner for Vitamin B-100 Complex because this brand has a proven track record of production excellence and reliability within UK pharmaceutical-standard facilities. Lamberts manufactures in the UK under stringent GMP pharmaceutical standards, ensuring consistent purity, potency, and batch-to-batch quality that our customers can trust. Their commitment to ingredient transparency and allergen control aligns with our safety priorities and supports confidence in every batch.

This brand stands out through its established quality culture and meticulous manufacturing practices, supported by the fact that the product is produced in GMP-certified facilities with rigorous quality assurance processes. This gives our customers a clear assurance of safety and consistency, essential for a high-strength B vitamin complex intended for short-term use.

Choosing Lamberts means a strong product fit for this supplement category, with features like methylcobalamin and a brain-supporting nutrient profile that match its design as a rapid-boost formulation. Our vetting process, led by our expert team, confirms this brand meets our standards for quality and credibility. This brand was evaluated by our expert team of doctors, nurses, and nutritionists for compliance with the certifications we require.