Swanson Vitamin B-1 (Thiamin) powers energy metabolism and nerve function, helping you keep mental clarity and steady energy through busy days. With a simple, single-ingredient formula, this capsule supports carbohydrate breakdown into energy. Swanson vitamins have a long standing history of quality, produced in GMP facilities in the United States with independent third party testing.

Available Sizes & Variants:

250 capsules vitamin B-1 supplement - convenient daily dose for consistent support.

Benefits & Features:

• Supports energy production by helping carbohydrate metabolism.
• Enhances nervous system health, helping nerves work smoothly as vitamin b1 and thiamine support energy needs throughout demanding days.
• Allergen-free formula keeps daily use straightforward for a wide range of adults.
• Supports heart, brain and nervous system health, aligning with Swanson vitamins quality standards.
• Regular use fits a busy lifestyle, since thiamine is water soluble and excess is excreted, and Swanson's long standing history of GMP manufacturing in the United States offers reliable, predictable support.

Swanson has built a reputation for straightforward, clean supplements you can trust over more than five decades. This product is produced in GMP-certified facilities in the United States, with independent third party testing to verify purity and potency. The focus on a single active ingredient keeps things transparent, making Swanson Vitamin B-1 a dependable daily support for adults seeking reliable energy and nerve health. It’s pretty straightforward, to be honest.

Thiamin USP (vitamin B-1) (as thiamin HCl), Thiamin USP (vitamin B-1) (as thiamin HCl)

• GTIN: 87614010168
• Manufacturer: Swanson
• Categories: SwansonVitamin 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 capsule of Swanson Vitamin B-1 (Thiamin) 100mg per day with plenty of water, preferably with a meal for better absorption. Store in a cool, dry place after opening. Keep out of reach of children. Do not exceed the recommended daily intake. If you experience any adverse reactions, discontinue use immediately and consult a healthcare professional, especially if you are pregnant, breastfeeding, or have a medical condition.

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: Vitamin B1 (Thiamin) – Thiamine hydrochloride

Vitamin B1 is a water-soluble vitamin essential for everyday energy metabolism and nervous system function.

This form uses thiamine hydrochloride, a common salt form found in supplements, manufactured under GMP conditions to safeguard ingredient integrity.

What Does Vitamin B1 Do?

Vitamin B1 is involved in energy production by helping convert carbs into usable energy and plays a part in supporting the nervous system.

EFSA guidance notes thiamine's role in normal energy-yielding metabolism and nervous system function, aligning with findings that thiamine supports mental and physical performance when intake is adequate.

This product isn't intended to diagnose, treat, cure, or prevent any disease.

Swanson is recognised for manufacturing in GMP-certified facilities in the USA and conducting thorough third-party testing to verify purity and potency. This brand’s commitment to high manufacturing standards aligns with Welzo’s emphasis on safety, reliability and transparency in supplement production.

Welzo’s medical team evaluated Swanson’s quality approach and concluded that its longstanding industry presence and proactive testing practices support consistent and safe dosing for consumers. Their use of independent laboratories to verify products mirrors our quality assurance criteria, helping ensure you receive a reliable Thiamin supplement.

This brand stood out in our comparison thanks to its clear single-ingredient formulation and established regulatory compliance, that enhances predictability and traceability for the British market. Our team selected Swanson for its dependable manufacturing heritage and rigorous quality controls, making it a robust partner for a Thiamin product that aims to meet high standards of accuracy and safety.

This brand was evaluated by Welzo's healthcare professionals for compliance with our quality assurance criteria, and we are confident in Swanson as a reliable supplier for this supplement.