It is impossible to predict the exact result a patient will achieve with laser hair removal, especially with regard to how many sessions a given individual will require. Many of the hair removal clinics which guaranteed results have gone out of business. Like most reputable medical practices , the most established laser hair removal practices do not guarantee results. Unfortunately, the whole process is rather painful to bear, and even though the hair stays away for longer, it still grows back. You may even have it grow back thinner and lighter, which is certainly a plus. You only have to ask yourself if you can endure that pain. Another method that is said to be permanent is laser treatment and electrolysis . 永久脫毛 slim 激光脫毛 These two methods involve intense actions on the follicles. Laser treatments are often used for large areas of skin and the process tends to go a bit quicker. A short laser burst targets the follicle deep within the skin tissue, sending it into shock. The follicle then stops producing hair for an extended period of time. Electrolysis on the other hand uses a brief electric shock to the follicle which also stops the follicle from producing hair. The difference is that electrolysis is far more expensive and it can only be done on much smaller areas.