What is a base coat for nails?

A base coat for nails is a clear polish applied to the nails before the application of colored nail polish. It helps to protect the nail from staining and damage, as well as providing a smooth surface for the colored polish to adhere to. Base coats can also help to extend the wear time of nail polish and prevent chipping. Some base coats also contain ingredients that help to strengthen and nourish the nails, promoting overall nail health. Additionally, base coats can help to prevent nail polish from discoloring the nails and can improve the overall appearance of a manicure.