OSiS+ Session is a versatile finishing spray that locks styles in place with a flexible, buildable hold.

This 300ml professional formula provides humidity resistance and UV protection to extend style longevity without stiffness or flaking. Ideal for salon professionals and everyday styling, it works seamlessly over any hairstyle—from polished blowouts to textured waves. Spray evenly from 6-8 inches away for customizable control and a natural, moveable finish.