The Base and top coat of So'Bio étic is a varnish enriched with organic castor oil. It magnifies the nail while strengthening and regenerating it. Si can be used as a base and as a top coat. Used as a base, it protects your nails from possible yellowing and coloring linked to pigments. It also smoothes the surface of the nail and allows the varnish to adhere better. Used as a Top Coat, it provides a protective film on your varnish, optimizes its shine and strengthens its hold. A 2 in 1 that protects the nail and strengthens the hold of your varnish. The easy and precise application thanks to the brush allows a perfect distribution and a homogeneous coverage for an optimal result. It is advisable to apply 1 layer before the 2 layers of varnish and after applying 1 layer to perfect the manicure.