At the discount store they have tooth whitening kits with the gel and mouthpiece for a dollar, and then at the more higher end stores they have them there but for about 30 - 70 $ per kit, the ingredients are the same , I think ?
--------------------
The ones that work all use hydrogen peroxide or carbamide peroxide. Higher concentration = less time to be effective. Carbamide peroxide works with the saliva in your mouth to become hydrogen peroxide at a lower concentration – it takes about 2.76% carbamide peroxide to equal 1% hydrogen peroxide. That means a 10% carbamide peroxide gel is really about 3.6% hydrogen peroxide. Look at the concentration when you're comparing. Another thing to look at is quality. Be careful the discount stuff you're talking about isn't expired and that it comes from a reputable company. Peroxide does degrade over time and won't be as effective. Also, there are a lot of scam companies capitalizing on tooth whitening. Make sure it's from a company that is accountable for their product and has a real address and phone number to contact if there are problems. Worse case is the discount stuff from a scam company is contaminated or isn't effective at all. You would be on your own if things went terribly wrong. You are, after all, putting a bleaching agent in your mouth and it can come into contact with the membrane. So be careful when choosing.
Source
No comments:
Post a Comment