Our Toenail Repair Serum contains Salicylic Acid, Mugwort Extract, Rehmannia Rehmannia. It strengthens nails, deeply moisturizes, nourishes cuticles, helps eliminate fungus that affects nails, and promotes growth. Its application is simple: first wash and dry the affected toes and fingers, remove as many damaged nails as possible with nail clippers and files until the nails are flattened or thin, then apply a thin layer of liquid to the affected area with a nail brush, repeat this process twice a day for 1-2 weeks or until the infection is gone. After use, it melts and repairs dry nails, strengthens and nourishes nails, helps eliminate fungus that affects nails, and leaves nails looking clear and healthy again.