Can I Mix Crest White Strips with Listerine White Strips?!
Question: Can I Mix Crest White Strips with Listerine White Strips.?
Hey i Have 5 days worth of crest white strips and 4 days worth of Listerine white strips. I dont know if i should just re-buy the Crest and get the full 7 days or do 5 crest 2 Listerine. Or 5 crest and 4 Listerine. What happens if you dont use all 7 days of Crest.? you just dont get as white.? anyone.Health Question & Answer
Answers:
I think you can mix them with no problem. They both contain the same active ingredient. I think using the 5 Crest then the 4 Listerine would work fine. I think they will whiten no different than if you used just one product.Health Question & Answer