What should clients do before undergoing laser hair removal?

The recommendation for clients to shave the area to be treated before undergoing laser hair removal is based on the need to ensure that the laser can effectively target the hair follicles. Shaving helps to remove any surface hair that could potentially obstruct the laser's path to the skin and hair roots. By shaving, clients minimize the amount of hair present, allowing the laser energy to focus more directly on the hair follicles rather than on extraneous hair above the skin. This preparation enhances the efficiency of the treatment and helps achieve better results.

Other options would hinder the effectiveness of the treatment or pose risks to the skin. For instance, exposing the skin to sunlight can increase the risk of complications like burns or pigment changes due to increased melanin sensitivity. Applying heavy makeup can create a barrier on the skin that might interfere with the laser's penetration and effectiveness. Taking aspirin before the treatment could lead to increased bruising or bleeding during the procedure, which is not advisable. Therefore, shaving is the most appropriate step clients should take to prepare for laser hair removal.