Ran out of gel from your Holo Teeth Whitening Kit? Hold on to your Holo mouthpiece and maintain your pearly white teeth with our pen refills.
You can get the Extra Strength Pen Refills here.
- Whitens your teeth
- Safe for enamel
- 100% vegan and cruelty-free
Save (and get free shipping!) when you order 3 Holo Pens!