The number of laser treatments for acne scars depend on your starting point and factors such as the treatment method, the device used, the skill sets of the practitioner, the depth and type of your scars, your healing response, your tolerance to downtime, your skin colour etc. In most cases, 3 to 4 sessions of fractional CO2 / Erbium laser may lead to 60 – 70% improvement. Treatments are spaced with 2-3 month intervals. More treatments may be performed for even better outcomes. Some patients aim for the best possible outcomes and go far beyond this number of laser treatments.