While laser hair removal can be performed at any time throughout the year, the fall and winter months are the best time to begin the laser hair removal process for several reasons.
It is easier to avoid sun exposure.
Laser hair removal works by targeting the melanin present in both dark hair and dark skin. Therefore, the best candidates for laser hair removal are those that have light skin and dark hair. However, if you have a darker skin tone than Fitzpatrick type IV, then there are still a few options for you. Both the Alexandrite laser and the Nd:YAG have been shown to be both effective and safe for those with darker skin tone, to a certain extent.
Since the amount of UV radiation we are exposed to tends to decrease during the winter months, our production of melanin also decreases, making it the ideal time to begin your laser hair removal sessions. Furthermore, sun exposure can ruin the results of your laser hair removal treatment. Having sunburned or tanned skin increases the risk of laser hair removal side effects, such as changes in skin pigmentation, irritation, redness, and swelling. If you have a tan, either from sun exposure or sunless tanning products, it is important to wait until the tan has completely faded before undergoing laser hair removal.