Macadamia Natural Oil StraightWear Smoother Straightening Solution, glossy, shimmering finish that penetrates into the hair cuticles. Specially formulated rich ingredient that works magic on damaged hair, result typically last 3-5 months. Rich in protective essential argan and macadamia oil, Omega 7, 5, 3 and 9 fatty acids for healthy and refined nurtured nail texture. Hydrates, eliminate 97% frizz and curl for a straightened, shiny and smooth bouncing hair. Not for use on bleached, highlighted and gray hair. For use only by professionals.