1. Twist bottom of pen clockwise until a little gel flows to the bristles.
* For your first session, you may need to twist 5-10 times. Do not tip upside down.
2. Smile wide, keeping your lips away from your teeth.
3. Use even brush strokes to apply a thin layer of gel to each tooth.
4. Insert beaut. mouthguard & plug into device.
5. After your 15 minute whitening session, rinse with water.
GEL INGREDIENTS : 44% carbamide peroxide
1 single whitening gel pen for any smile kit.