Final answer:
The recommended number of coats for a successful nail polish application is two to three coats.
Step-by-step explanation:
The number of coats needed for a successful nail polish application can vary depending on the type of polish and the desired result. However, in general, it is recommended to apply two to three coats of nail polish. The first coat provides a base, the second coat adds depth and opacity, and the third coat helps to even out the color and increase the longevity of the polish.
Learn more about nail polish application