I had the Japanese Hair Straightening treatment with Chi and was amazed with the long lasting results. Before the treatment my hair was coarse and frizzy due to having used hair straightening irons and permanent hair colour for years. However, now it's straight and much softer and generally much easier to handle. I had the Japanese Hair Straightening treatment previously at another salon but the results were not as long lasting compared with the treatment I had with Chi. I highly recommend this treatment if your hair is coarse, frizzy and damaged, it will really make a difference.