Enhance Your Smile with Ultradent Opalescence 20% PF Mint Refill 5400 - Pack of 4 Review

Don't waste your time and money. I bought it even though there were a lot of negative reviews. These don't work. I've tried all the syringes but to no avail. I've been whitening my teeth for years using syringes from the dentist's office at the same percentage. Already after one procedure there are noticeable results. Not with these. FYI: The expiration date is on the outer packaging, which doesn't appear to be related to the product. Don't buy this.

I used to use 10% I guess and decided to up my game for faster results. According to other reviews I only left this for 45 minutes. I felt a slight tingling sensation on the upper gums between my front teeth but it went away within minutes. When I took out my mouthguard, I noticed to my surprise that the gum line area was pure white. It later turned blood red and took a long, painful week to heal. I'm sure it works great but I'm a little afraid to try again.

I have been using it for years after my dentist recommended this product. My dentist made me a mouthguard so I wouldn't clench my teeth. I use protection to whiten my teeth, I'm not sensitive but I'm careful not to leave the product on my gums. The thickness of the gel makes this easier. I buy it here because of the better price than my dentist office.

I have been using these teeth whitening trays intermittently for several years. It was recommended by my orthodontist and again by my dentist. It's easy to use. It doesn't feel too hard on my teeth. I don't have overly sensitive teeth but after 3-4 days of use they can become sensitive. My orthodontist only recommended doing it every other day or as often as possible without sensitivity. I love it and it works! Was it helpful? Click "helpful" below to let me know!

I've been using it for years. The dentist charges $40 for the same bleach. I recommend using it wisely. It removes plaque from my teeth and I enjoy a snow white, healthy smile. The first time you use it, you might not notice much of a difference. I use it about 3 days in a row for 3-4 hours each time and on the third day my teeth are white. Be careful not to get on your gums and if you experience some sensitivity, just stop using it for a few days. It may not be good for everyone, but for me…

My teeth are super white! I have used this product in the past. I bought it from my dentist for a much higher price. This is the same product as my dentist's. I use 20 percent starch because more starch makes my teeth more sensitive. She works great. I have custom trays specifically for teeth whitening. I recommend only using the small dot on the front of the bleach bath. Enough to cover the tooth without running on the gum. It is important that this does not touch your gums. Otherwise, if it…

I've been using Opalescence for about a decade now since my dentist first gave me this remedy to fight the never ending battle with tooth discoloration. The only difference as far as I can tell between the Revain version and the one he gave me is the price. I think 20% durability is in the Goldilocks zone. 10% take too long and 35% make my teeth too sensitive. I never understood the need for "flavor". I've always believed that if you can taste a product, you're doing something wrong. As for the