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Free shipping over $50No proprietary blends · fully disclosed labelsThird-party tested · GMP certified facility

Customer Reviews

4.7 out of 5 · 624 reviews

Reviews are a representative sample of real customer reviews aggregated from public data and matched to this product; written reviews are representative samples, not verified individual purchases.

4.7

out of 5

Works better than Zyrtec for me

The best mast cell slayer (plus vitaminC)

Priya L.·September 15, 2017·12 found this helpful

Good product

I am not a doctor but do read a lot of remedies for preventing contracting covid 19. I have never been positive for this manufactured disease.

Diego M.·April 3, 2022·9 found this helpful

It works!

I'm in my mid thirties and have developed seasonal allergies over the past 10 or so years. My allergies are difficult to say the least. Dust mites, pine & Birch trees, golden rod and a sensitivity to salicylates to name the big ones. Oh and I also have oral allergy syndrome to food items with similar proteins. This past spring (march/April) I started to take this supplement(just one pill) along with a glass of beet juice in the morning. Now I know your all gagging at the thought of drinking beet juice but with a little lemonade it's not bad. It's also very good for you, but I digress. Now I cannot say if it's one or the other but I have not had any sinus headaches, runny nose, itchy eyes or sleepless nights this year. I'm incredibly happy with this product, as far as I can tell it's worked wonders. I'm not on any medication any more and I can go outside again. Now please note that I do wear a mask during the height of tree pollen season. I can't bring myself to take the chance of a sinus headache but considering I'm doing my firewood at that time it just makes sense.

Dean F.·July 6, 2019·9 found this helpful

Great for Histamine Intolerance

High quality Quercetin with C supplement. I am taking it to help my histamine intolerance. I had developed high allergic reaction to all histamines, especially things like strawberries, spinach, peanuts, pineapple. This really helps me! No more skin rashes. :)

Omar M.·May 15, 2018·7 found this helpful

Not as advertised

This product was helpful, but it wasn't as advertised. It wasn't natural Quercetin, it was Quercetin Dihydrate, which is chemically synthesized.

Diego G.·February 3, 2022·6 found this helpful

Ready for the next viral pandemic

Easy to swallow, easy to handle, and all the standard anti-viral capability for a supplement, complete with Vitamin C. Great product!

Faye K.·April 27, 2022·3 found this helpful

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