Yuko hair straightening from va salon is first and the only permanent hair straightening system that restructures hair internally to create lasting straight smooth and sleek results va salon is one of the few london locations to provide this skilled service yuko hair straightening originates from japan hair stylist yuko yamashita designed the thermal hair straightening technique in 1996 to help clients with unruly frizzy hair today the yuko hair straightening technique continues to be a