BioTechUSA B-Complex is a multivitamin that helps fuel energy metabolism and nerve health, so you stay alert, balanced, and ready for the day. The star ingredient set is the B vitamins, backing energy production and neural health [which supports daily resilience]. BioTechUSA is produced in GMP certified facilities and follows EU regulations, underscoring safety and careful ingredient selection.

Available Sizes & Variants:

60 capsules - two capsules daily support energy metabolism and nervous system health.

Benefits & Features:

• Energy support from high dose B vitamins helps sustain daily stamina.
• A robust multivitamin profile delivers essential nutrients for nervous system health.
• Ginseng and guarana provide natural energy support to boost alertness during the day, while caffeine sensitive users can still feel a gentle, long lasting lift throughout the day.
• Vitamin D3 supports immune function and is paired with C and E for antioxidant protection.
• Perfect as a daily multivitamin staple.

BioTechUSA has built a reputation for safety and careful ingredient selection, and it's a formula that pairs high strength B vitamins with antioxidants and plant extracts like ginseng and citrus bioflavonoids in a formulation made in GMP certified facilities under EU rules. The formula uses recognised vitamin and mineral forms and includes hesperidin from citrus, Korean ginseng, and guarana, all designed to support energy, mood, and daily resilience.

Thiamin (Vitamin B1), Riboflavin (Vitamin B2), Niacin (as nicotinamide), Pantothenic acid (Vitamin B5), Vitamin B6, Folic Acid, Vitamin B12, Vitamin A, Vitamin C, Vitamin D, Vitamin E, Biotin, Iron, Copper, Chromium, Selenium, Hesperidin, Korean ginseng root extract, Guarana seed extract, Thiamin (Vitamin B1), Riboflavin (Vitamin B2), Niacin (as nicotinamide), Pantothenic acid (Vitamin B5), Vitamin B6, Folic Acid, Vitamin B12, Vitamin A, Vitamin C, Vitamin D, Vitamin E, Biotin, Iron, Copper, Chromium, Selenium, Hesperidin, Korean ginseng root extract, Guarana seed extract

• GTIN: 5999076247974
• Manufacturer: BioTechUSA
• Categories: BioTechUSA SupplementsSports Supplements
• 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 2 capsules daily with a glass of water. Do not exceed the recommended dosage. Store in a cool, dry place under 25°C, out of reach of children. Not suitable for children, pregnant or nursing women, or individuals with known allergies to bee products. Food supplements do not replace a balanced diet and healthy lifestyle.

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

*Percent Daily Values are based on a 2,000 calorie diet. Your daily values may be higher or lower depending on your calorie needs.

The Active Ingredient Is: Thiamine (Vitamin B1)

Thiamine, also known as vitamin B1, is a water-soluble vitamin that plays a key role in normal energy metabolism and supporting the nervous system.

This product provides a bioavailable form of thiamine as part of a B-complex approach to daily vitality, alongside other B vitamins and supportive nutrients.

What Does Thiamine Do?

Thiamine participates in normal energy-yielding metabolism and supports nervous system function, aligning with EFSA and NHS guidance.

Dr. Kennedy of the University of Reading found that B vitamins contribute to energy metabolism and may help reduce feelings of tiredness in healthy adults.

This product is formulated to help maintain everyday energy and cognitive function through its thiamine content in combination with other nutrients.

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

Why BioTechUSA B‑Complex is Welzo Selected

BioTechUSA has a solid track record in delivering well balanced multivitamin formulations, backed by a reputation for manufacturing in GMP certified facilities and adhering to EU food supplement regulations. This blend of strict production standards and a clear commitment to safe, carefully chosen ingredients gives us faith in BioTechUSA as a dependable partner for a high strength B‑complex. Our team checked BioTechUSA for consistency, reliability and dedication to quality, with Welzo's healthcare professionals reviewing the brand against our established criteria for safety and integrity. You can learn more about our team here: Welzo's healthcare professionals, and how we verify ingredient quality here: how we verify ingredient quality.

This brand stands out through its transparent emphasis on safe, carefully chosen ingredients and a clear manufacturing philosophy that aligns with our focus on integrity, potency and consistent supply. BioTechUSA B‑Complex is particularly well suited to support energy metabolism and nervous system health through a complete B‑vitamin and nutrient profile.

Welzo’s selection process prioritises brand credibility, solid quality standards, and regulatory compliance. Our evaluation reflects a disciplined approach to partner selection, ensuring a dependable supply chain while maintaining UK relevant safety and compliance practices.