Laser treatments impair the growth capacity of the hair follicles when they are in the active growth stage. Not all follicles are active at the same time and several treatments, every 3 weeks, may be necessary to obtain the desired result. The number of treatments needed to achieve hair reduction varies. Most patients experience a marked reduction in hair growth in 4 to 6 treatments. Additionally, other factors such as hair density, age and hormones can affect the results of your treatments. It would be fair to say that you will require at least 4 treatments, one month apart to obtain best results. Diode 808 Laser Hair Removal Treatment Risks Any laser has the risk of hyperpigmentation if you expose the areas treated to sunlight. The sun is very strong in Bali and you must wear SPF 40+ every day on all the areas treated and stay out of the sun and cover up. We are not responsible for any problem with hyperpigmentation, this is caused by exposure to the sunlight, not by our lasers. Very tanned skins are best not to be treated with laser. Even bottle bronzer or self-tan is not to be used prior to any laser treatment. Just 1 session will not guarantee your skin issue will resolve. You usually need around 4-6 sessions, depending on the particular skin issue and how resistant it is to the laser treatment.