I haven’t found the formula, but here is information on the article I was reading that triggered me thinking about.
An Open Study to Evaluate Effectiveness and Tolerability of a Nail Oil Composed of Vitamin E and Essential Oils in Mild to Moderate Distal
Subungual Onychomycosis
Aurora Alessandrini Michela Starace Francesca Bruni Bianca Maria Piraccini
Department of Experimental, Diagnostic and Specialty Medicine, Division of Dermatology, University of Bologna
Skin Appendage Disord 2020;6:14–18
Received: July 31, 2019
Accepted: September 10, 2019
Published online: October 25, 2019