Japanese straightening is a hair treatment that permanently straightens curly or wavy hair. It uses a chemical solution to break down the hair's natural bonds, allowing it to be reshaped. After applying the solution, heat is used to lock in the straightened form, resulting in sleek, smooth hair. This process is often preferred for its long-lasting results, typically lasting several months. However, it requires proper aftercare, including specific shampoos and conditioners, to maintain the hair's health. Many people choose Japanese straightening for its ability to reduce frizz and make styling easier.