Great question! There are several things you should do before your appointment. Avoid sun exposure for at least two weeks beforehand because tanned skin can complicate the laser treatment. Don't pluck or wax for about a month before your appointment – shaving is okay, but the hair needs to be at the root level for the laser to work effectively. Also, stop using any irritating products like retinoids or acids a few days before. Wear sunscreen religiously if you'll be outside. The clinic will give you specific pre-treatment instructions, so follow those carefully.