Milbon Chemical Services Liscio High Solution H2 Gel is for healthy, virgin hair. Liscio High Solution H2 Gel makes beautifully straight hair. Liscio makes resistant/curly/wavy hair look naturally straight, shiny and manageable. Liscio Thermal Reconditioning is a technique that originated in Japan to make curly, wavy or frizzy hair, straight. The process uses both chemicals and heat to soften the bonds of the hair, reforming the bonds in a straight pattern. The end result is not only perfectly straight hair, but a glossy, smooth, and silky finish that is more healthy than before the process!