I have purchased like 25 bottles over 5 years, I don't have any issues with bleeding like that one reviewer. I was having huge seasonal allergies and dust and food allergy -this has zero side effects, no drowsiness, and honestly after a few years of taking either 2-4 a day in the summer and spring or 2 a day in the fall (helps a lot with stuffy indoor dusty areas), I honestly don't even have allergies anymore. I probably acclimated, but my dad who has lived here for 25 years still has allergies and he pumps his head full of Flonase and whatnot.I love solgar and am thankful for this. I get one cold every 18 months or so, big improvement from before where I was getting sick every couple months, but it should be noted I also transitioned to a fully Autoimmune Paleo diet (it matched my food allergies and the nurse recommended) and Took Bluebonnet chelated Multimineral to help reverse years of malnutrition and celiac. Check with your doctor but these things combined were powerful and my white blood cells are in the healthy range again (including neutrophils). Another thing is that I would take these with solgar iron biglyscinate (very dangerous unless you've gotten your levels tested and proven to be low, but many women have menses and low iron intake so it made sense I was almost anemic). It really activates it with the vitamin c.Thank God for solgar basically healing my body along with my change in diet Read more

I can't praise Quercetin Complex enough!!! My allergies were so bad (allergic to everything except dogs and cockroaches - really). I was on weekly shots (for years), citrizine in the morning, fexofenadine at lunch (loratadine had no effect), 3-4 times the normal dose of budesonide nasal, azelastine as needed, as well as daily guaifenesin and pseudoephedrine, plus Budesonide/formoterol inhaler for the chronic cough, and albuterol in a nebulizer. I was still miserable. Post nasal drip, constant throat clearing, sinus headaches & migraines, chronic rhinitis and frequent bronchitis. Then, the doc said I had GERD. I started reading about side effects and guess what? The OTC antihistamines CAUSE chronic cough and GERD. The omeprazole the doc wanted to put me on also has side effects - all the acid-reducing meds do. They block protein absorption which seriously limits your body's ability to heal. To top it all off, the main symptom of GERD is too LITTLE stomach acid - not too much. Adding 2 Tbsp of organic, non-GMO apple cider vinegar to my tea has helped immensely. Most docs just treat symptoms, none try to find the cause. The cause was all the pharmaceuticals they kept putting me on. Each one to treat the side effect of the last. ENOUGH!I found Quercetin when the doc put me on omeprazole. It made me sick, so I started researching. It took a few weeks for Quercetin to kick in fully, but now, I'm off all the OTC antihistamines, only use budesonide nasal occasionally, haven't touched azelastine, only use Budesonide/formoterol inhaler twice a day instead of 4x, only need the nebulizer if I get sick, and am looking for natural alternatives to the guaifenesin and pseudoephedrine. It also helps to add Similisan nasal allergy relief spray and Similisan allergy eye drops. Both are natural and don't have side effects. Now, my headaches are better, fewer migraines, less post nasal drip, less coughing, less allergies. I feel so much better! The docs and the pharmaceuticals were only making me worse. I live in Florida and I would have migraines at least a week before through a week after every hurricane that came within a few hundred miles of here because of all the pressure changes. My head is a human barometer. Every change triggers a headache and I have to hold my nose and blow like on an airplane whenever the pressure changes. When hurricane Irma came through, I had a migraine for 4 weeks!!!! This year (w/ Quercetin) we had one come close and I just had to clear my ears a few times - no hurricane migraine for the first time since we moved down here (15 yrs)!!! I can't believe the difference!!! Thank you Solgar for making this amazing product! Read more

Being an advocate of vitamins and holistic healing since the early 70s a lot of people new to vitamins and biotin Amazon don't realize that solgar has always been since the beginning the Rolls-Royce of vitamin companies. I did absolutely nothing paid for for writing a good review it's just a simple fact. As far as I'm concerned their is "Solgar" and then everyone else. I'm sure there's a lot of soup organic boutique companies that charge a lot of money that are probably equally well I haven't tested all of them.I truly believe that they're in a class of their own with high standards before even high standards were an issue. By with confidence. Read more

Product works as advertised & is highly recommended as 1 of several supplements for the Covid-19. I have developed my own cocktail but this product is one of them and I would not change.I am a 74 year old male with many preexisting conditions.Please take my word that this product is a must for any combination you use based on solid due diligence. Read more

This product is wonderful! I have mast cell activation disorder and my doctor told me to take up to 4 claratin a day to help my condition. I decided to search for an alternative treatment after experiencing horrible dry mouth and sinuses on the claratin. I found info on quercetin and how it works to help stabilize mast cells. I looked at the reviews and decided on this product. I have been taking it a month now and no longer take the claratin. It is working great and I am feeling the results! Read more

Not many realize that Quercetin is not just a bioflavinoid. It is a very powerful anti-viral! Cures the common cold and helps with all manner of other viruses. I rely on it very heavily as it's the only thing that works except for prevention. Read more

This is a wonderful well made product. I use it to help my allergy and mast cell activation disorder issues. No bad taste and the bonus is that it also has vitamin c which also helps allergy sufferers. I recommend this to others. I actually missed taking this over a weekend and my symptoms started coming back so I resumed and started feeling better again which makes me a huge believer and supporter of this great product. Read more

I have been taking this supplement for about ten years. I have no scientific basis to claim any benefits, only personal experience. Prior to my taking this, I would catch a bad cold about four times a year (a cold in which I would lose time from work). I now average a bad cold about once every few years. I also have a lot less knee pain. I cannot absolutely attribute this to quercetin. It may only be a coincidence. Read more

These have made a huge difference to histamine issues- I had reached the maximum dose of fexofenadine, each time I increased they seemed to take the edge off symptoms at first but then they seemed to get worse. I had a dramatic improvement with Solgar Quecertin and Vitamin C, so much so that weaned off fexofenadine and now only take 2 Solgar daily. I now know that quecertin and bit c stop the release of histamine- whereas chemical antihistamines just block the histamine receptors, so once they wear off and since the histamine is still in your system all the symptoms come back. Chemical Antihistamines can also block the enzyme that breaks down histamine. Read more

This REALLY helped with my sensitive stomach. After a long period of stress I was having major problems with my digestion, I'd have reactions to food (crazy huge bloating, anxiety, panic, indigestion, IBS). These were foods that had never caused me any issues before. I suspected "leaky gut"Quick bit of info (from Dr Josh Axe):"Leaky gut syndrome is a condition where undigested proteins like gluten, toxins and microbes can pass into the blood stream. Another name for this condition is “intestinal permeability” which means the “tight junctions” or the gateway between the intestinal wall and bloodstream have been damaged and are allowing the undigested particles to pass through the intestinal wall. When these particles enter the bloodstream it will cause system wide inflammation and can initiate an immune response in the body"Quercetin is said to help tighten up the junctions in your intenstinal wall to stop the permeability causing the problem.I took one of these a day (lower than the suggested dose of 2) and found that I felt a lot more relaxed and did not have the food reactions.Quercetin is also a potent anti-histamine. I started getting hay fever, sneezing and itchy eyes. One of these a day kept it at bay! It needs to be taken BEFORE any reaction as it will not stop it once it's started.Unfortunately after about 2 weeks of taking it I get a tension headache that doesn't stop until I quit it. However, since I was taking it alongside bone broth, collagen and probiotics to heal my gut & digestion further I found I could cycle it on and off to still see improvement and I still found it a massive benefit to me.The capsules are average size and very easy to swallow with water. Highly recommended! Read more

For such a pricey product it is very disappointing that it contains maltodrextin which is harmful to the body. Read more

WHAT IS QUERCETIN?Quercetin is a flavonoid that’s found in plant foods such as leafy greens, tomatoes, berries and broccoli.Flavonoids are powerful antioxidants that can prevent or delay some types of cell damage.----------RESEARCHED BENEFITSQuercetin is anti-viral, anti-microbial, anti-inflammatory and anti-allergic.Research shows that quercetin can:- reduce inflammation- reduce symptoms of arthritis- protect brain cells from oxidative stress- fight allergies- support heart health (reduces systolic blood pressure)- reduce pain- protect skin health- exert antibacterial activity against various types of Staphylococcus infections----------RECOMMEND DOSAGEQuercetin is typically used in the range of approximately 1000mg to 2000mg per day.----------INTERACTIONSBe careful if you are taking drugs such as antibiotics, cyclosporine or warfarin as quercetin may change how these drugs work and raise the risk of side effects.----------MY EXPERIENCE OF TAKING QUERCETINSolgar is a much trusted brand and the capsules are easy to swallow.I've had allergy symptoms such post nasal drip and scaly skin patches for years, which I have managed by taking a daily antihistamine and monitoring my diet. I hate ingesting nasty chemicals so I thought I'd replace my daily antihistamine with quercetin.I take two quercetin a day and my post nasal drip and allergy induced skin patches has completely disappeared.I'm truly amazed at the results and highly recommend this product Read more

I have used this quercetin now for over 18 months as in the hot weather my histamine levels go up that i get a bad rash on hands and neck. This product has practically eradicated the problem and I dont get hayfever anymore either. Read more