Instead of other products using ordinary 1:1 Quercetin in their capsules, this product uses Quercetin Dihydrate extracts. This allows for much more efficient dosage delivery. The addition of 10:1 black pepper extract (5mg) was a smart decision.I've tried the product for over a week and have now made this product my new everyday Quercetin supplement. Read more

My wife and I take quercetin along with several other supplements to help our immune systems in general and against one recent disease in particular. So far, neither of us has had the disease and we haven't been the stay at home bodies actively trying to avoid it either. So I have to guess that it's working as we hoped. We will continue to take our supplement cocktail whenever we travel. Read more

I have used Quercetin for years for seasonal allergies and have greatly reduced symptoms. This product is working like a champ as pollen counts have been very high this year Highly recommend. Read more

I like the potency and the quantity of this brand of Quercetin. It also contains black pepper extract for improved absorption of quercetin. The capsules are of convenient size and have the color of quercetin. I'll order again once this bottle runs out. Read more

I am impressed with the quality of this Quercetin. I've used several brands, but this one impressed me enough to try it. I'll definitely buy it again! Read more

Seems like a good product. If their extract ratio's are accurate, it is a highly concentrated form of Quercetin. Haven't seen anything else out there quite like it. Read more

I like this formula because it is standardized, non-gmo, and 3rd party lab tested. It does seem to be more potent than some of the other brands. I do wish I knew more of the country of origin of the quercetin. Read more

Quercetin is supposed to help with allergies and improve immune system along with a list of other health benefits. I like the added Black Pepper, quantity per bottle and once a day dose. Read more