Do: comb your lashes (especially after getting wet) with the complimentary brush you will receive after your appointment, apply lash serum day and night (please see the retail page for our recommendations), use an oil free mascara (please see the retail page for our recommendations). Don't: get your lashes wet for at least 12 hours after your appointment, use oil based makeup products and makeup removers, wear mascara for at least 12 hours, sleep on your face