Does dental bleach expire?

I have had a tube of bleach for my teeth for over a year. It is used to put in dental trays to bleach teeth overnight. There is nothing on the tube that mentions an expiration. Does anyone know?

I had a tube in my fridge that I’d forgotten about and I asked my dentist about it. She says that they’re usually good for a year and keeping it in the fridge extends that for about 4 months. Beyond that, it’s not toxic or anything, but tgenerally are less effective (if effective at all).

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2 Responses to “Does dental bleach expire?”

goody2shoes47677 on March 5th, 2010 at 3:55 pm

usually they have an expiration date like anything else. I know that if you keep it in the refrigerator it will last longer. Basically if its OLD it will just be less effective.
References :
Worked Chairside in Dental Office for years!
ravenbeaut on March 5th, 2010 at 4:41 pm

I had a tube in my fridge that I’d forgotten about and I asked my dentist about it. She says that they’re usually good for a year and keeping it in the fridge extends that for about 4 months. Beyond that, it’s not toxic or anything, but tgenerally are less effective (if effective at all).
References :

Teeth Bleaching