Best Vitamin B1 (Thiamine) Supplements of 2025

Nature Made Vitamin B1 100 mg is a dietary supplement that supports energy metabolism and a healthy brain and nervous system. This B1 supplement is easy to take with one tablet daily with water and a meal. The product contains no added colors, artificial flavors, or preservatives and is gluten-free. Customers should be available during delivery to prevent potential product melting or damage due to exposure to heat or sunlight.

If you're looking for a high-quality vitamin B1 supplement, Nutricost Vitamin B1 (Thiamine) Capsules is an excellent choice. Each capsule contains 500mg of vitamin B1, ensuring that you get a potent dose in every serving. With 120 capsules per bottle, you'll have enough to last you for months. The vitamin B1 is non-GMO, gluten-free, and 3rd party tested, so you can trust that you're getting a safe and effective product. The capsules are made in a GMP compliant, FDA registered facility, ensuring that they meet the highest standards for quality and purity.

This Vitamin B1 supplement offers an optimized combination of thiamine mononitrate and S-Benzoylthiamine O-Monophosphate to provide high bioavailable benfotiamine complex. It contains fat & water soluble forms of the B1 vitamin, designed to work together in providing key micronutrients for healthy energy vitamins, nervous system & glucose support. This formula helps in turning food into energy, replenishing essential Vitamin B complex levels, and may work as a natural mosquito repellent. It is Non-GMO, gluten-free and has been 3rd party lab tested.

If you are looking for a reliable Vitamin B1 supplement, Nutricost Vitamin B1 (Thiamine) is the perfect choice for you. Each capsule contains 100mg of high-quality Vitamin B1, and there are 120 capsules in each bottle. Nutricost Vitamin B1 is made in a GMP compliant, FDA registered facility and is non-GMO, gluten-free, and third-party tested. This supplement is ideal for those who want to maintain healthy energy levels, support their nervous system, and promote overall well-being.

NOW Supplements, Vitamin B-1 100 mg supports energy production, nervous system health, and healthy nerve tissue. This thiamin supplement is involved in numerous body functions, including carbohydrate metabolism and the production of hydrochloric acid. It is Halal, Kosher, Non-GMO, Soy Free, Vegan, and packaged in the USA by a family-owned company since 1968. NOW Supplements has an NPA A-rated GMP certification for quality assurance.

Nature's Way B-1 Supplement offers 100 mg of thiamin per capsule, which supports your body’s ability to convert carbohydrates into energy. Taking just one capsule daily with food can help enhance your energy metabolism, making it easier for you to stay active throughout the day. This supplement is gluten-free and free from common allergens like salt, wheat, corn, soy, and dairy, ensuring it's suitable for various dietary needs. Additionally, there are no artificial colors, flavors, or preservatives, providing you with a natural option for your wellness journey.

Life Extension Mega Benfotiamine 250 mg Capsules are a vegetarian supplement that contains fat-soluble Benfotiamine, a form of vitamin B1 that supports healthy glucose metabolism, protects against oxidative stress and advanced glycation end products. This supplement is more bioavailable than water-soluble thiamine,increasing enzyme activity by 300%. It also supports healthy endothelial function by inhibiting inflammatory factors, blocking certain protein complexes, and promoting already-healthy blood glucose levels.

Life Extension Benfotiamine with Thiamine supplement helps maintain healthy glucose metabolism and already-healthy blood sugar levels. It also promotes healthy endothelial function and helps protect the body's tissues from oxidative stress. The fat-soluble thiamine in the formula has superior bioavailability compared to the water-soluble form. Made with non-GMO, gluten-free ingredients and manufactured in the USA, the product ensures maximum bioavailability and efficacy.

Thiamax B1 Capsules by Objective Nutrients offer a powerful thiamine (B1) derivative designed for superior absorption. Unlike regular thiamine supplements, this innovative formula allows your body to absorb thiamine almost entirely, meaning you can benefit from a lower dose. These small capsules also enhance cognitive clarity and support your brain health by boosting thiamine levels in your central nervous system. Additionally, Thiamax promotes effective transport of thiamine across cell membranes, ensuring that your body gets the nutrients it needs quickly and efficiently.

BenfoMax 90's by Pure Encapsulations is a potent vitamin B1 supplement sourced from Japanese benfotiamine. This vegan formula supports heart health, metabolism, and helps maintain healthy kidney function. With each capsule delivering 200mg of benfotiamine, this supplement aids in combating advanced glycation end products. The suggested daily intake is 1-3 capsules with meals to boost your vitamin B1 levels effectively. Pure Encapsulations ensures its products are free from common allergens, artificial ingredients, and GMOs, making BenfoMax 90's a reliable choice for overall health support.