Sensitivity & safety questions

Answers to common questions about sensitivity and safe use.
Will these hurt my sensitive teeth?
No! Teethfy strips are specifically formulated for sensitive teeth. Our peroxide-free formula uses sea salt and coconut oil instead of harsh bleaching agents. In customer surveys, 95% of users reported zero sensitivity.
Are they safe for enamel?
Yes. Our formula is enamel-safe and dentist-formulated. Unlike peroxide-based whiteners that can weaken enamel over time, our mineral salt formula gently lifts stains without damaging tooth structure.
Can I use them if I have gum disease?
We recommend consulting your dentist before using any whitening product if you have gum disease, periodontitis, or active gum inflammation.
Are they safe during pregnancy?
While our formula uses natural ingredients, we recommend consulting with your doctor before using any whitening products during pregnancy or while nursing.
Can children use the strips?
Our strips are designed for adults 18 and older. Children and teenagers should not use whitening products without dentist supervision.
What if I accidentally swallow some gel?
Our ingredients are non-toxic, so accidentally swallowing a small amount of gel is not harmful. However, try to avoid swallowing and rinse your mouth after treatment.