FRS fan wondering if anyone has just tried quercetin?

I love FRS for a pick me up. I don't use it often at all, maybe a few times a month, but my hubby uses it A LOT! Has anyone ever tried just the quercetin? Or maybe even the quercitin with green tea? Thanks for your input. This stuff is getting expensive.

Also, I LOVE the powder. It's so easy to carry around in my purse and just add to a bottle of water. WHY oh why doesn't GNC carry the powder? Anyone have an "in" here? Can we get the powder packets people?!