Teeth Whitening Kit Gel Pen Strips - Hydrogen Carbamide Peroxide for Sensitive Teeth, Gum,Braces Care 32X LED Light Tooth Whitener, Professional Oral Beauty Products Dental Tools 2 Mouth Trays

How many modes of teeth whitening light are there?
Long press to turn on the blue light, lasts 15 mins, used to accelerate teeth whitening, long press twice to turn on the blue&red light, lasts for 10 mins, the red light function is used to reduce the whitening process of tooth sensitivity.
How can I avoid gum irritation_
Use a cotton swab to wipe away the excess gel attached to the gums
How much should I use at one time?
Our gel comes with bristles, our recommended dosage is a thin layer on each tooth, Do not apply too much, too much gel doesn't whiten faster!
Is this safe for veneers, crowns and dentures?
Our Ollm whitening gel only whiten real, natural teeth. While our gels and refills are completely safe and will not damage your teeth, they may result in uneven whitening results if you choose to use them.
What kind of people can't use this product?
Under 18 years old, pregnant or lactating women, people with sensitive teeth, people with decayed or loose teeth, people with braces, we do not recommend these people to use this product!