B-50 Complex helps fuel your day by supporting energy production and nerve health, powered by essential B vitamins that act as coenzymes in crucial metabolic reactions. The blend covers the main B vitamins with high purity, designed to support energy production and nerve function. Source Naturals brings years of experience in premium supplements, emphasising quality and trusted formulations.

Available Sizes & Variants:

100 tablets B-50 Complex - Ideal daily supply for ongoing support

Benefits & Features:

• Supports daily energy and focus, and a bit more zing.
• Key active ingredients act as coenzymes for energy production and metabolism, helping convert meals into usable energy while supporting nerve function throughout the day, consistently.
• Designed for daily use, this formula fits into busy routines smoothly, and easily.
• Supports metabolism of carbohydrates, fats and proteins for steady stamina, plus reliable everyday performance.
• Quality is ensured through rigorous testing and high purity ingredients, so you can feel confident.

Source Naturals has built a reputation on clean, high purity formulations for everyday wellness. B-50 Complex brings together thiamin, riboflavin, niacin, B6, folate, B12, biotin and pantothenic acid into one daily boost. B vitamins act as coenzymes for energy production and metabolism, while supporting the nervous system and skin health. The brand's long standing commitment to quality and transparent formulations sets this apart. Many customers pair it with a vitamin d supplement, MSM or probiotics for a balanced daily routine.

Thiamin (vitamin B-1), Riboflavin (vitamin B-2), Niacinamide, Vitamin B-6 (as pyridoxine HCI), Folate (as folic acid), Vitamin B-12 (as cyanocobalamin), Biotin, Pantothenic Acid (as calcium D-pantothenate), Choline (as choline bitartrate), Inositol, PABA (as para-aminobenzoic acid), Sorbitol, stearic acid, silica, modified cellulose gum and magnesium stearate.

• GTIN: 21078004219
• Manufacturer: Source Naturals
• Categories: CHECKOUT UPSELLNew ArrivalsSource Naturals
• 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 1 or 2 tablets each day. Take two (2) softgels daily\, in divided doses\, with or without food\, or as recommended by a healthcare practitioner.

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

Vitamin B1, or thiamin, is a water-soluble nutrient that plays a big part in energy metabolism and nervous system function.

This form comes as thiamin in a B-50 complex and helps turn carbohydrates into energy through its job as a coenzyme in vital metabolic reactions.

What Does Vitamin B1 Do?

Vitamin B1 helps carbs metabolism and supports regular nerve function, helping keep energy going in the body.

Scientific research indicates that B vitamins act as coenzymes in energy metabolism, a finding aligned with EFSA and NHS guidance on nutrient functions. Dr. Williams of University of Cambridge found that B vitamins participate in key metabolic processes that support energy production.

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

Source Naturals is Welzo's trusted partner for B-50 Complex because the brand consistently shows a rigorous approach to quality and purity. This manufacturer is renowned in the industry for its commitment to high-purity ingredients and a broad portfolio of supplements, reinforcing a credible base for long-term partner relationships. Their established standing in the market signals reliability and provenance that align with Welzo’s standards for safety and efficacy.

Source Naturals stands out through a demonstrated focus on quality benchmarks and a strategy that prioritises integrity in formulation. Our evaluation emphasised their reputation for dependable sourcing and their ability to support a comprehensive B‑vitamin complex with transparent formulation practices. This alignment with Welzo's expectations is reinforced by our team’s review, which considers factors such as manufacturing philosophy and product integrity, and is guided by Welzo's healthcare professionals and our commitment to the certifications we require.

For product-specific fit, Source Naturals’ B-50 Complex complements their quality-focused approach, ensuring a cohesive supplier relationship that backs reliability, safety, and value for customers seeking a well-rounded B‑vitamin blend.