To use Ben Nye's Final Seal, hold the spray at least 6 - 8 inches away from your skin. Spray it evenly over your makeup as the last step of your makeup application to make sure your makeup sticks to your skin. If you're using cream makeup like concealers and foundations, set them with powder first before using Final Seal. You can also use it before makeup to reduce the effects of skin oils and sweat. Remember to use it in a well - ventilated area. If the nozzle gets blocked, just wipe away the built - up sealer with isopropyl alcohol.