I hardly ever write reviews on amazon but seeing as how many of the reviews helped me figure out what dose I needed for allergies I'm going to chronicle my experience. First off this supplement is amazing. Before I started my Quercetin regiment I was taking Allegra- D 180mg, I had very severe allergies. It worked OK , but after 3 months I started having really bad ED. Yes, Erectile dysfunction. As a 23 year old there's no reason for me to have ED. I also had problems sleeping, feeling tired, and being angry all the time. This was when I started looking for something different, and did some research into Quercetin. After trial and error I figured the dose that works for me (I am 220lbs) was 2 capsules in the morning 7am and 2 capsules in the afternoon 12-3pm. I also take a 10mg singular every morning. After about 3 days of getting off Allegra and starting this I had amazing results. My allergy symptoms were completely gone and I regained my manhood. Additionally I feel refreshed, and my muscles feel a lot better in general. I have a job that requires me to be extremely active and after starting this supplement I feel like it takes a lot more work for me to feel sore. Overall I'm glad I made the switch . This works better than any other allergy medication I've tried, and trust me I've tried everything