Thorne Research Riboflavin 5'-Phosphate

60 Veg Capsules
4 Reviews
The body requires a lot of nutrients to function, but they often have to be converted first. For optimal B2 supplementation, skip the conversion step and get straight to health.Read More >
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Customer Reviews


4 Reviews

  • 5 stars
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  • (1)
  • 3 stars
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Mar A.

Riboflavin 5 Phosphate

We dont tolerate all Bs yet so is very good to be able to purchase them separately and adjust our dose as necessary. Thanks.


Susie H.

One of the Best Online Resources

Natural Healthy Concepts is my favorite place to find the vitamin, herbal and homeopathic supplements I use. They give nice discounts and free shipping to members (membership is free), plus they ship very quickly. Thanks for making my supplement-buying an easy, pleasurable task!


Annette B.


This is a good product!


Brian A.

No problems.

My naturopath asked me to take this. A lot of supplements give me reactions, but this one has not.

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