I am reviewing the Toe and Nail Anti-Fungal Oil on behalf of my spouse. They have had issues with nail bed thickening, discoloration and fungus their whole adult life. Since applying the anti-fungal oil about two weeks ago, the thickening has decreased and the new nail-bed is looking normal. They are applying the oil three times daily. We are wondering whether the andirova and chaparral extracts have something to do with it, since we have not heard of those.