The Poderm Duo Express Serum is a powerful antifungal nail treatment designed for all skin types. With a period after opening of 12 months, this unisex product is perfect for treating fungal infections on the feet. The serum comes in a convenient 8ml and 6ml size, making it easy to apply and effective in repairing damaged nails. Trusted by poderm, this serum is a must-have for anyone looking to combat foot-related fungal issues.