The effects of such skin whitening procedures are usually not permanent but can last between a few months to a few years. However, if you follow your doctor’s instructions and take good care of your skin, this period can increase. Some reliable dermatologists suggest the following after-care tips of the skin whitening treatment .  Following a basic skin-care routine. Opting for maintenance sessions from time to time. Consuming a balanced diet and in creasing water intake. Leading a healthy lifetyle by eating fresh fruits and vegetables. Use good sunscreen to protect your skin from harmful sun rays and many more. Furthermore, the results of bleaching agents and chemicals peels are mostly not permanent but compared to the laser treatment, they last for a more extended period. In addition, tattoos and birthmarks can be removed permanently with the help of laser treatment.