Pico laser treatments are the fastest way to get rid of hyperpigmentation, but the results take time. The number of Pico laser sessions you will need to fix your issue will depend on the depth and type of pigmentation you have, with more complex cases requiring more sessions and a greater amount of time before seeing any dramatic differences. On average, most people experience the full result of their treatment after 4 weeks after their last session. Following your initial treatment, you may notice that your pigment darkens or that you have redness, tenderness, and/or swelling. This is completely normal and will dissipate in 1-3 weeks following treatment. You should also notice your original pigmentation beginning to fade over this time frame as well.