How long does laser hair removal last ? On average, three treatments of the same area are needed to achieve the desired results. Depending on the person and condition of the hair, more treatments may be necessary. However, most people rarely need more than six treatments unless hormonal imbalances or other factors prove to be an issue. No laser hair removal machine is able to provide permanent hair removal. Most lasers are only able to result in significant hair reduction. This means that some percentage of the hair will often grow back. In patients with white or blond hair, complete regrowth is likely within about a year. In patients with dark hair and light skin, hair will be significantly reduced, but some hairs that were in the dormant phase may become active following treatment. This will result in partial hair regrowth in between the monthly sessions. Generally, after the completion of a standard treatment, hair will be kept at bay for up to 2 years. Annual maintenance sessions may be necessary to deter full regrowth.
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