How does NailCare Toe Nail Treatment Gel work? NailCare Toe Nail Treatment Gel is an antifungal product designed to treat nail fungus, also known as onychomycosis. The active ingredient in the gel is likely to be one of the common antifungal drugs like terbinafine or itraconazole, which work by preventing the fungus from growing and spreading. When applied to the affected nails, the active ingredient in the gel penetrates the nails and reaches the site of the fungus. It then works by inhibiting the synthesis of ergosterol, a component of fungal cell membranes. Without ergosterol, the fungal cell membrane becomes leaky and the fungus can no longer survive. This leads to the death of the fungus and the eventual clearance of the infection. OUR GUARANTEE We are confident that we offer some of the best products on the market. Therefore, we provide a 30-day guarantee. We will make every effort to ensure that you are completely satisfied with your purchase. Online shopping can seem daunting. We want you to know that there is absolutely zero risk of purchasing something. We won't make it difficult if you don't love it. We offer email and ticket support 24 hours a day, 7 days a week. If you require assistance, please contact us. Please contact customer service if you have any problems with your purchase.