It is crucial that you refrain from waxing for at least six weeks prior to your first session to avoid complications. When using tweezers, the same thing happens. The laser should be able to identify the hair follicle. During this time period, shaving is permissible. The sun must be avoided at all costs. Tanning the skin in any way can result in pigmentation in the laser-treated areas. Caffeine should be avoided for at least 1 Day before your session if you are nervous. You should shave using a new razor the day before your treatment. If you shave, the lasers will be able to detect the follicles more easily. After your laser treatment, using a clean, new razor avoids the potential of lingering bacteria causing contact dermatitis. (A delayed allergic reaction to a specific allergen that occurs after skin contact is known as contact dermatitis.)