so here's what I got for $1.09 (actually, I just looked at the receipt.)
Recently, I read a few articles on getting whiter teeth, quick and easy and I found a few products that really help and maintain healthy teeth. The first thing I bought today was Hydrogen Peroxide 3%. I don't think Ive ever seen anything more than 3 but according to this article Perfectly White Teeth says its safe to use 3 to 5% for your mouth. (I don't think as far as OTC is concerned, you cant get more than 3% anyway.)
For Hygiene, I read on a few websites that it is good to rinse your mouth with HP just to kill bacteria overall plus for a few mins longer, 2-10 minutes, it will help whiten teeth. I tried that today it made a huge difference. Overall my teeth looked brighter instantly. Only thing is -- and one thing you can do to test how much you can handle, pour some in the cap and dip you brush in the peroxide and brush your teeth.
Also, for proper teeth care, you should brush your teeth for like 2 minutes, but I don't know if that's possible so by rinsing your mouth with peroxide, its easier to brush for a shorter period.
The Peroxide cost 50 cents because there was a sale, 2 for 1. I just bought one and Generic Baking Soda cost 79 cents.