Sciton's Halo treatment is the world's first hybrid fractional laser system. Designed to give you beautiful skin with less downtime than any other system, Ha... Sciton's Halo treatment is the world's first hybrid fractional laser system. Designed to give you beautiful skin with less downtime than any other system, Halo combines two laser wavelengths to get rid of brown spots and other color defects, as well as smooth out skin and give it a youthful, healthy glow.