Is it healthy to you use the whitening strips after after each pack? After I finish the 12 I bought could I just use another 12 to perpetually whiten my teeth? Will it even work?
I use the crest 5 minute touch up whitening strips daily. Those are meant for daily use, but I wouldn't use a full whitening kit everyday. Start with the daily strips for 25-30 minutes and once you use that pack start using the 5 minute touch up strips.