For optimal sensitivity relief, brush teeth using AO ProToothpaste Sensitive and apply AO ProVantage Dental Gel to gums for 3 days prior to your whitening treatment. We recommend the pre-whitening treatment first thing in the morning, after lunch, and before bed.

For a bright, beautiful smile, apply gel from the PerioSciences Whitening Pen to the teeth you want to whiten by removing the cap and twisting the base of the pen until gel appears in the bristles. Select the desired dual-LED light mode and insert device into your mouth. When finished with whitening treatment spit out all saliva and remaining whitening gel, rinse with water, and do not eat or drink for 30 minutes.

Use the LED² Teeth Whitening Device 15 minutes per day for 10-15 days.

Domestic Shipping: Free standard domestic shipping to the U.S. Delivery for all orders is an estimated 5-8 business days from the time of processing. We are not responsible for any lost in transit or damaged packages from the shipping carrier.

International Shipping: We do not currently sell or ship outside of the United States.

Returns: We have a 30-day return policy, which means you have 30 days after receiving your item to request a return. To be eligible for a return, your item must be in the same condition that you received it, unused, and in its original packaging. You’ll also need the receipt or proof of purchase.

We recommend using the LED² Teeth Whitening Device for 15 minutes per day for 10-15 days. Can also be used for touch ups as needed.

The LED² Teeth Whitening Device is water resistant.

We recommend using our Pre-Whitening treatment prior to, during, and after whitening treatments for optimal sensitivity relief. Our teeth whitening pre-treatment regimen is the key to zing-free whitening and includes our AO ProVantage Dental Gel and AO ProToothpaste Sensitive, clinically proven to help eliminate oral sensitivity. Shop the whole bundle here: https://periosciences.com/products/whole-bundle.

No, we do not recommend whitening your teeth immediately after using the Pre-Treatment routine. For optimal whitening results, wait at least an hour after use of our pre-treatment regimen.

A set of 3 Teeth Whitening Refill Pens will last 12-15 uses. Each pen contains a gel with 35% carbamide peroxide and potassium nitrate.

Teeth whitening is accomplished by using either a peroxide or carbamide peroxide gel, both break down using oxidation as the method of whitening teeth. The higher the concentration of peroxide, the faster whitening but unfortunately the higher the concentration is associated with more pain and sensitivity to the teeth and gums. Our take home whitening kit contains 35% carbamide peroxide along with potassium nitrate to help minimize teeth sensitivity. For individuals who have experienced teeth and mouth sensitivity when whitening, we recommend our clinically proven AO ProToothpaste Sensitive and AO ProVantage Dental Gel as a pre-treatment.