ProNail Complex works based on research-based findings that address the root cause of toenail infections. It combines a set of skin-repairing vitamins and potent oils that can work at the root of fungal attacks and help you regain the natural growth of your nails. For example, one of the ProNail Complex ingredients is vitamin E.A research study published in the Microorganisms journal states that vitamin E has anti-inflammatory effects that can treat Candida albicans, a kind of fungal attack on your nails. Another ingredient is flaxseed oil.A study published in the Journal of Food Science found that flaxseed protein extract exhibits antifungal activity. Like these, all ingredients in ProNail Complex work in a synergistic manner to support your nail health and prevent fungal attacks.