You can get Quercetin at GNC plus if you eat a lot of fruits and vegetables you can get it that way. I picked up some Quercetin tonight just to see if its any good. I read its not very bioavailable via the pill route. If anyone is going to try this they do need to take more than than the one caplet daily of else it would probably be worthless but its that way with most supplements. I’ve been taking ALA and ALCAR for a long time on and off and I do notice a benefit the biggest thing I notice is my vision acuity here’s one study pertaining to that.
http://www.ncbi.nlm.nih.gov/pubmed/24665163
If you want your eyes to get better, try a small amount of DMSO daily.