What you should do before your Eyelash Extension appointment? Remove all eye makeup and clean your lashes with mild, oil free cleanser. Do not use oil based makeup removers to clean your lashes prior to the application. Do not put on any mascara. We don't want to spend time cleaning your lashes. We'd rather spend time working on perfecting your lashes. If you wear contact lens, please remove them and wear glasses to your appointment, or bring a lens case and remove them when you arrive at your appointment. Plan to set aside 1 - 2.5 hours for your appointment. Some of my clients fall asleep during the procedure.