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ThiActive B

(47 customer reviews)

ThiActive B

(47 customer reviews)

ThiActive B complex contains a full spectrum of B vitamins in their active forms, including methylated folate and vitamin B12.

Also included are two highly bioavailable vitamin B1 derivatives, thiamine tetrahydrofurfuryl disulfide (TTFD) and benfotiamine.

Located in Australia or New Zealand? Please visit Revivify Health to order!
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ThiActive B-Complex provides a full spectrum of nutritional B vitamins to complement the action of thiamine (vitamin B1) within the cell, including two different forms of thiamine with high bioavailability.



Benfotiamine is an S-acyl derivative of thiamine known for its ability to improve blood sugar management and support peripheral nerve function. Thiamine Tetrahydrofurfuryl Disulfide (TTFD) contains one thiamine molecule bound with a sulfur-mercaptan group, which provides it with unique properties. The molecular structure of these two thiamine derivatives allows them to pass through intestinal and cellular membranes without the requirement for a transport system. Once inside the cell, they deliver thiamine which can be activated and used as a cofactor in important biochemical processes.

To support the process of methylation, this complex includes active folate in the form of L-methyl folate, along with non-methylated folate in the form of folinic acid (calcium folinate). Similarly, two types of active vitamin B12 are provided in the forms of methylcobalamin and adenosylcobalamin.

This formula also contains the activated form of vitamin B2 (riboflavin-5-phosphate) and vitamin B6 (pyrixodal-5-phosphate). As an additional ingredient, D-ribose is included as a sugar precursor to promote cellular ATP production. This product was designed for people who feel that they benefit from methylated vitamins in their active form.


How to use

  • Start with one capsule per day in the morning with or without food. This can be increased to 2 capsules per day to reach a maximum dose.
  • Avoid coffee/tea consumption either one hour before or two hours after.
  • Avoid taking this product in the afternoon/evening, as it may interfere with sleep.

For those who consider themselves sensitive to methylated B vitamins, consider using our non-methylated B complex Thiavite.

Important information:

  • In some individuals, supplementation with products containing thiamine tetrahydrofurfuryl disulfide (TTFD) can induce a temporary worsening of certain symptoms such as fatigue, brain-fog, and digestive bloating or gas. This usually lasts for around one week, and is referred to as the “paradoxical reaction”.
  • For those with sensitivity to sulfur-containing compounds, this product may not be suitable.

Frequently Asked Questions

How many capsules shall I take to begin with?

When is the best time to take this?

Can I take it with food?

What are the side effects?

What is the maximum dose?

Are there any other supplements which should be taken with ThiActive B?

47 reviews for ThiActive B

1-10 of 47 reviews
  1. walter Deagle

    Very good

    (0) (0)
  2. Carolyn

    Simply the best B complex supplement I have found. Thank you!

    (0) (0)
  3. Julianne A.

    It is a pleasure doing business with a company who is responsive and provides excellent products at a fair price. I have found them to be customer oriented and very very helpful in answering questions. Cannot recommend highly enough.

    (0) (0)
  4. Ekta Aanjna

    Firstly I took thiamax, severe headache and gas become worse in few days than ordered thiactive b vit methylated form and electrolyte and took them with thiamax again same condition occurred,,,now please help me out this ,,,i want cure for gut Issues and gas bloating relief

    (0) (0)
  5. Becky M.

    These caused severe depression which stopped two days after I quit taking them.

    (0) (1)
  6. Anonymous

    I wanted to start taking a b vitamin so I searched several websites and found yours was best quality for the best price. Thank you.

    (0) (0)
  7. Peter L. Sjoberg

    Fast shipping, useful product.

    (0) (1)
  8. Joni

    Smooth transaction. thank you

    (0) (1)
  9. Tracy

    out of stock too much

    (1) (0)
  10. Laura Bogard


    (0) (1)
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*These statements have not been evaluated by the Food and Drug Administration. These products are not intended to diagnose, treat, cure or prevent any disease.
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