Is Carbamide Peroxide safe during pregnancy?
Whitening and earwax ingredient. Fine while breastfeeding per LactMed; no pregnancy studies, so ask your dentist.
PregnancyAsk your clinician
BreastfeedingGenerally safe
EvidenceLimited
What the sources say
LactMed says carbamide peroxide in teeth whiteners or ear drops is unlikely to be absorbed; any absorbed amount becomes urea and hydrogen peroxide, both normally found in milk, so it's not a reason to stop breastfeeding. A review found peroxide whitening safe when used as directed, but there are no pregnancy studies, so ask your dentist before whitening while pregnant.
Common alternatives
Also listed as
perhydrol urea, urea hydrogen peroxide, urea peroxide
Sources
- NIH LactMed: Carbamide Peroxide - Drugs and Lactation Database (LactMed)
- NIH PubMed (peer-reviewed review): Tooth whitening: what we now know (J Evid Based Dent Pract, 2014)
Last reviewed . This is general information, not medical advice. Ask your doctor or midwife about your own situation.