Tinactin offers a full line of products to treat athlete's foot including sprays, powders, and creams. Tinactin products contain tolnaftate, a highly active fungicidal agent. Clinical studies have shown that the active ingredient in Tinactin is effective in preventing athlete’s foot when used once or twice daily. The active ingredient in Tinactin (tolnaftate) prevents fungus development. Symptoms like itching and burning normally resolve quickly upon treatment. As the fungus is eliminated, the redness will also improve.