What: A 3 pack whitening gel refill for any beaut. smile kit with a 44% Carbamide peroxide formula. Each whitening gel pen contains 5-8 treatments. 

Instructions:

1. Twist bottom of pen clockwise until a little gel flows to the bristles.(For your first session, you may need to twist a few times).
2. Smile wide, keeping lips away from your teeth.
3. Use even brush strokes to apply a thin layer of gel to each tooth.
4. Insert beaut. mouthguard & turn on light.
5. After your 15 minute whitening session, rinse with water.

Active Ingredient: 44% carbamide peroxide