Your order today is covered by our 100% money back guarantee within 60 days. If you’re not impressed with the results, just write to us and we’ll refund every penny. ProNail Complex is a meticulously crafted natural formula that combines extremely potent oils and skin-repairing vitamins. This doctor-formulated mist spray releases the ingredients in the form of microparticles so that they can reach deep into the skin and nails.