Hi K.,
Upon first hearing, lipoflavanoids sound like a natural approach...I see no ingredient in the "supplement" that increases blood flow. One of the things that is common in causing ringing in the ear is damage that keeps blood from flowing properly. Ginkgo Biloba is know for increasing blood flow. I had ringing in the ears for a while and then started taking a supplement a completely different reason, for my heart, that not only included ginkgo, but grape skin and grape seed that restore elasticity to tissue (which can be damaged by the lack of blood flow). The occasional ringing in the ear has gone away completely. I've seen other "side effects" of this supplement as well. Not only female issues but my skin looks so much younger than before as well.
Hope this helps!
M.