Features a water-based formulaCorrect mistakes before sealing with top coat by wiping off product with moist cotton swab*INSTRUCTIONS*: (1) Prep your nails with a nail polish of your choice and let dry completely. (2) Pick your pen and shake, with cap on, to warm up pigment. (3) Press pen tip onto a hard surface and let pigment pool into the tip. (4) After finishing your design, let completely dry then protect with a clear top coat.