Jarrow FormulasQuercetin 500 mg - 200 Veggie Caps - Supports Antioxidant Status, Cardiovascular Health & Immune Health - 200 Servings

Drains your sinus cavities, all four of them. ENT doc was ready to do surgery on my daughter because she was so blocked and had chronic sinus infections. He explained that he does the surgery routinely, that it carries risk of brain damage and has to be repeated again and again. I went to my Sprouts grocery, to their supplement section and asked one of their knowledgeable clerks what use and she told me that her naturopath told her to use Quercetin for just this purpose! It is a natural flavaniod known for it’s anti-inflammatory properties. The theraputic dose (per doc’s instructions) is (2) 500 mg capsules, three times daily for ten days. 8 have my daughter do a cap a day for maintenance. I googled for reviews of this product before giving to my daughter and was Astounded at how many people rely on this! But dont expect your MD to tell you about it. Please give it a try before you go under the knife! It can start draining in as little as 24-48 hours.

Great item! Highly recommend !

This supplement along with others and a certain medicine made for deworming have been my lifesaver. I have found this to be a very good quality of quercetin with clean ingredients. When you’re severely ill as I have been for two years, you know good quality when you take it because your body reacts to any little thing good or bad and this was a definite win for me!It has helped me and fighting those viruses that keep being unleashed! With the flu season being what it is these days I wouldn’t want to be without this in my pantry and I keep extras on hand.

My holistic vet prescribed this for our dog. I tried another brand cause Quercetin is Quercetin right? Nope! My girl had digestive issues. Went back to and she’s perfect again. I’m loyal now.

Worried about a change in inactive ingredients, or source or faulty storage??? First, I have been using quercetin and specifically this brand, for 5 years now to control my Mast Cell Activation Syndrome and allergy symptoms. Historically, Jarrow's Quercetin 500mg works great and quickly, with relief within minutes. I use it when I feel symptoms come on. I have recommended quercetin and this brand for years.My extended family all uses quercetin now.Why do I know there has been a change?? Sometimes I take the capsule whole. But for more immediate relief, I usually open the capsule and dump it into my mouth and then drink a glass of water, as water also dilutes histamine and decreases my reactions. The taste is not unpleasant and like a chalk texture. But today, April 20, 2022, I opened a new bottle, dumped a capsule into my mouth and it tastes like sand. Same color, but now a bland taste with a sandy texture. I was not having an allergic reaction, so I can not say if this quercetin is working differently. But I am concerned why this has changed taste and texture. My whole family also takes quercetin. They agree it also has a new taste and texture. If you have Mast Cell, you understand why I am very concerned. Quercetin has been a life changer. I rely on quercetin at least weekly. Furthermore, inactive ingredients can cause reactions. They redesigned the label with a note stating "2021 Jarrow Formulas" and my last bottle "2019 Jarrow Formula" but otherwise not much is changed on the label besides font. I'll write an update if I notice a change in relief.

I have been using this product for about 6 months to treat Mast Cell Disorder. I take 3-4 grams daily with 1-2grams of Vitamin C. It has been recommended to me by both my allergy/immunology specialist AND a renowned Mast Cell specialist. It has made a definite improvement in my symptoms. I can literally feel my mast cells stabilizing when I take them (fatigue reducing, coordination/focus improving, wheezing/air hunger improving) and those symptoms slowly return when I am nearing my next dose. My major triggers are airborne particles/smells caused by a mold exposure. I am very satisfied with the progress this has helped me make. Whenever I need a quality supplement, I reach for Jarrow. I also have MCS and have never reacted to any Jarrow products which says a lot about their quality.

IMHO:Quercetin is an essential ingredient if you are doing Niacin therapy, taking mega doses of genuine Niacin to lower cholesterol. Niacin gives you the Niacin-flush in large doses. Your skin turns red & you feel hot; you may feel prickles. The Niacin flush is quite uncomfortable. Research indicates that the best thing (readily available thing) to take to minimize Niacin flush is Quercetin. Before I take my 2000 mg once a day regimen of Niacin, about 35 minutes in advance I pop about 8 Quercetin (4000 mg). Also I take half a 350 grain aspirin, dissolved in warm water, mixed with anti-acid. Also, I take a strong does of Vitamin C. Then I eat a meal. At the end of the meal, after about 35 minutes since I took my Quercetin, I take my Niacin and generally do not get much of a flush if I have been doing this for several days.BTW, only take Niacin once a day. The so called "flush-free niacin," is not real Niacin at all. That will not fight cholesterol.

Quercetin is a great supplement.