Formula 7® is a newly patented, paraben-free Soluble Tolnaftate antifungal microemulsion fortified with cosmetic ingredients and bactericidal agents. What makes Formula 7® unique? Soluble Tolnaftate – A technology developed by The Tetra Corporation (U.S. Patent # 4,810,498) and used first in Formula 3®. Formula 7® is the first tolnaftate microemulsion – U.S. Patent Awarded 2021 Formula 7® is formulated with cosmetic ingredients that rehydrate and restore the natural physical properties and appearance of the skin and nail with each use. The cosmetic ingredients are C12-15 Alkyl Benzoate, Jojoba Seed Oil, Glycerin, PEG-20 Hydrogenated Lanolin, Urea, Vitamin E Acetate, and Caprylyl Glycol. The N-acetyl-l-cysteine (NAC) in Formula 7® is a penetration enhancer specifically designed to increase tolnaftate flux through keratin. Studies have also found that NAC has bactericidal properties and breaks down bacterial biofilms of clinically relevant pathogens including Pseudomonas aeruginosa, Staphylococcus aureus, Enterococcus faecalis, Enterobacter cloacae, Staphylococcus epidermidis, and Klebsiella pneumoniae. Formula 7® contains urea to increase the water content of the top layers of the skin. Urea gently dissolves the intercellular matrix, which results in loosening the horny layer of skin and shedding scaly skin at regular intervals, thereby softening hyperkeratotic areas. Urea also hydrates and gently dissolves the intercellular matrix of the nail plate, which can result in the