Holo
Holo Pen Refill
Holo Pen Refill
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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!








Welcome back
If you're here, that means you're taking your smile care seriously. As you should.
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Key Ingredients
Carbamide Peroxide
Used by dental professionals to whiten teeth safely and effectively. Works by allowing its oxygen molecules to react with your teeth's discolored molecules, producing whiter teeth while keeping enamel safe.
Potassium Nitrate
Reduces and relieves tooth sensitivity by calming the nerve fibers and building protection.
Polyvinylpyrrolidone (PVP)
Helps prevent your teeth from developing new stains.
Full Ingredients List
Water, Carbamide Peroxide, Propylene Glycol, Glycerin, Carbomer, Cellulose Gum, Potassium Nitrate, Polyvinylpyrrolidone, Menthol, Sodium Hydroxide.
Good to Know
Vegan, Cruelty-Free, No pain, No sensitivity, Removes stains from coffee, tea, smoking

Next-level at-home teeth whitening
No cheap tricks, no shady, ineffective products. The Holo Kit uses the same active ingredient dentists use for teeth whitening to deliver professional results.

Gentle but powerful formula
Backed by science and years of research, our formula works hard so that you don't have to. Visibly whitens teeth at home safely and effectively, WITHOUT the sensitivity.

3-Step process
1. Apply teeth whitening gel.
2. Wear the mouthpiece for 16 minutes.
3. Rinse, and enjoy your new smile!

Need the results even sooner?
Pair the Holo Teeth Whitening Kit with the Holo Extra Strength Pen for maximum results.