Thank you for your question! Timing between treatments is very important for optimal results with laser hair removal. It is important to pay for treatments one by one vs paying for packages of laser services up front. Different areas of the body have different hair growth cycles. In order to catch the most hair in the active cycle during your laser hair removal sessions treatments should be scheduled according to the hair growth cycles. Face and neck treatments should be scheduled every 4-6 weeks, trunk areas including bikini, chest, back, underarms, stomach etc. should be scheduled ever 6-8 weeks, and legs 8-10 weeks apart. Typically 6-8 sessions are recommended to catch each cycle of hair growth, although some people may be satisfied with their results sooner. Following these guidelines should result in the greatest reduction of hair. It is essential to select a laser professional you can trust in an office powned and operated by a physician, not a franchise with an off-site medical director. A medical practice with a ling history of success with laser hair removal will likely have up to date etchnology and will be able to provide you with the safest and most effective treatment. Best of luck!