This product is undoubtedly authentic. However, it has a strong selenium taste and smell, which makes me nauseated after taking it, leading to unpleasant burping for about two hours. My husband, despite being bigger, dislikes the taste but takes it for immunity; we will consider a different brand next time. Although I understand that selenium supplements can have a taste, this one is overly potent.
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Excellent. Does not cause nausea.
I felt sick. Nausea appeared almost immediately after taking this selenium, but the ionic form did not make me feel ill.
Super selenium at a great price. It does not cause nausea and works effectively as an antioxidant. I highly recommend it!
A very effective supplement. I take selenium in 1-month courses with kelp, as my endocrinologist recommended. I feel well and it does not cause nausea.