Opalescence Pf 35% Teeth Whitening 4 pk (GUARANTEED FRESH !)
This whitening gel is very strong. It does a great job. One thing people should be aware of though is that you need to be very careful how much you use. Not anywhere did I read that you cannot get the stuff on your gums, so what did I do -got too much on my gums. Teeth Product
It started to burn, but I ignored it thinking the stuff was just working real good. No. Bad. I wasn’t able to hold out very long. No permanent damage, but real tender for a couple of days. I just wish I knew it going in. Now I am more careful. No biggy, just be careful and the stuff works great. I would definitively purchase again/recommend.
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