If the Feds manage to ban the Quercetin like they have the N.A.C., you can make Quercetin at home. 4 grapefruit rinds, 4 lemon rinds, (just the rinds...if the citrus is not organic, make sure you scrub it good), 10-12 cups of water. Simmer for 3 hours and then strain into Mason quart jars. (this made about 2.5 quarts for me.). Keep one in the fridge, one in the freezer. Take 2 tablespoons in AM and again in PM.
yes, I bought some grapefruit last week thinking I’ll make some up but you’ve answered my question....I can make it and keep it in the fridge....thx again.