Basecoats have important functions. Firstly, it improves the adhesion between the nail and the colored shellac, prolonging the wearing period of your wonderful manicure. Secondly, this drug protects your nail from the aggressive effects of coloring pigments, which are abundant in color gel polish. Thirdly, the shellac base evens out the nail plate, hiding the grooves.
Thanks to this, the color adheres better without irritating the appearance of unpleasant streaks. Fourth, it's worth noting that some base coats help strengthen nails, which is critical for supporting weak, brittle nail plates.