You can brighten your smile without the zing. These dentist-approved tweaks help you get results while keeping teeth and gums comfortable.
1. Go gentle on the gel and the contact time
Higher peroxide concentrations are linked to more sensitivity, so start with a lower-strength product and follow the directions on wear time. Sensitivity from whitening is common but usually mild and short-lived. 
If you use trays, custom-fitted trays help place gel where it belongs and limit contact with your gums. 
Remi tip: Use Remi Teeth Whitening Gel in short, directed sessions and take a rest day if your teeth feel tender.
2. Pre-treat sensitivity the smart way
Desensitizing agents like potassium nitrate (KNO₃) and fluoride are often used before or alongside whitening to reduce sensitivity, though research findings are mixed and still evolving. Some reviews suggest a benefit for potassium nitrate and sodium fluoride, while other trials find little or no difference. 
A soft-bristle brush and gentle technique also help keep sensitivity down. 
3. Keep acids away from your whitening window
Acids soften enamel temporarily. After acidic food or drinks, wait about 60 minutes before brushing so saliva can re-harden enamel. Rinse with water, and use a straw for sodas or citrus drinks to reduce contact. (ADA)
4. Maintain the white with low-risk habits
Whitening works best alongside daily care. Brushing with fluoride toothpaste, cleaning between teeth, and regular dental checkups keep stains down and make results last. Whitening with hydrogen peroxide or carbamide peroxide is considered safe and effective when used as directed, but tailor your plan to your mouth and stain type. 
Remi tip: If you wear a guard or retainer, keep it clear so it does not transfer stains back to teeth. The Night Guard Cleaning + Teeth Whitening Foam is a quick daily refresh for appliances.
5) Pace yourself if your teeth are reactive
If sensitivity flares, shorten sessions, lower the concentration, or add rest days, then resume once comfortable. In general, in-office higher-concentration treatments trigger more early sensitivity than at-home approaches, which is why gentle, repeated at-home sessions are popular for sensitive teeth.(ADA)
Quick routine to copy
1. Brush and clean between teeth.
2. Apply Remi Teeth Whitening Gel as directed.
3. Rinse gently, then avoid acids for an hour before brushing. 
4. Clean and dry your night guard or retainer with Remi Foam before storage.
When to pause and call your dentist
Stop and check in if sensitivity is sharp or lasts more than a few days, if gums stay irritated, or if you have recent dental work that changed your bite. A brief exam helps confirm the best gel strength, tray fit, and schedule for you.