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Doctor's Best Fully Active Folate 400 with Quatrefolic 400 mcg 90 Veggie Capsules

Helps support cardiovascular, mental and emotional well-being

Quatrefolic is the most bioavailable form of Folate

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Doctor's Best Fully Active Folate 400 with Quatrefolic contains Quatrefolic, the glucosamine salt of (6s)-5-methyltetrahydrofolate, the most bioavailable from folate, the provides greater stability and water solubility. Our bodies cannot synthesize folate and due to its water-soluble nature, the body stores folate to a limited extent. Folic acid, and food folate, needs to be converted to its metabolically active form to be utilized by the body. Quatrefolic is the metabolically active folate, making it more efficient than folic acid for maximized benefits! Folate is an essential vitamin to support DNA, proper cell division, cardiovascular, mental and emotional well-being. Vitamin C is included for added stability.

Nutritional Information

Serving Size: 1 Veggie Capsule
Servings Per Container: 90

Ingredients  Typical Amount per Serving %RI*
Vitamin C
(as ascorbic acid)
40 mg 44
(as (6S)-5-Methyltetrahydrofolic acid, glucosamine salt)(Quatrefolic)
400 mcg DFE** 100
* Reference Intake
** Reference Intake value not established
**DFE=Dietary Folate Equivalent


Other Ingredients

Microcrystalline cellulose, hypromellose (vegetarian capsule).

Free From

Gluten Free

Directions of Use

Take 1 capsule daily preferably between meals, or as recommended by a nutritionally-informed physician.


Food supplements should not be used as a substitute for a varied diet. Do not exceed the stated dosage. Store in a cool, dry place, protected from light and heat. Keep out of sight and reach of children.
Product Questions
About The Brand
About The Brand

Doctor's Best

Bigvits are proud to introduce you to Doctor's Best, a brand dedicated to creating a healthier world filled with thriving families, positivity, and happiness. Founded by a physician in 1990, they set out with a vision to develop research-backed nutritional supplements. Today, with over 30 years of experience, Doctor's Best remains committed to their science-based approach to nutrition. They source top-quality ingredients and collaborate with industry-leading manufacturers to produce supplements that enhance people's well-being. At Bigvits, we gladly offer Doctor's Best's science-driven solutions for a healthier lifestyle.

Delivery & Returns

Delivery & returns

  • Free Delivery

    Same day dispatch on all orders placed before 14:30 (GMT) and free UK delivery on orders over £30

  • Click and Collect

    Click and Collect is available for customers who live within 25 miles of our Driffield warehouse

  • International Delivery

    European delivery options vary by country. Prices start from £4.95. Enter your address at checkout for a price

  • No Quibble Returns

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