I like that these are sublingual. It's possible that the ingredients irritated my digestive system. If you can handle manniitol and sorbitol, then it's really only got one excipient.

Great product! Fully complies with the described criteria and qualities indicated on the label!

I took this and hope it helps with migraine. trust this brand.

I find the effect from this B-2 very noticeable, unlike regular non co-enzymated B2. I think my digestion/methylation is too weak so I respond only to coenzyme form of b vitamins. It is the same with B1 for me.

Works well, I prefer coenzymated as high quantities are not required for effectiveness I actually grind it up and take only one third of the tablet

Have been taking for a while but have upped the dose to 4 x a day as suggested by my naturopath...will see how I go👍

My Doctor found I had a severe deficiency of Vitamin B 2 and I had very bad headaches as a result. I had to take weekly injections of Vitamin B 2. Then I found this sublingual supplement available! Now I use this product instead. My doctor routinely monitors my lab values for the correct dose. It really gave me my freedom back to travel. Thank you!

Those are really strong, even too much for me. I have to break them in 2 or even 4. I've read that putting it between the teeth and gums yields better absorption than under the tongue.

Really excellent alternative to Riboflavin.

Good, although I may not have had any deficiencies of B2 so I didn't notice much of a difference.