Opalescence 35% Teeth Whitening Gel Refill Syringes, with PF (4ct) - 5405-2

This packs a lot of power in whitening. That being said - be careful. If you ever want to chew your food again and not live on liquids, or resort to foods that can only be consumed through a straw at room temperature, use this sparingly. I really like the quickness of the process but beware, this speed comes at a cost. Use only for 5 minutes the first time. Second time, ten minutes. I went all in and did it for 15 minutes and did I regret it. I felt like my teeth were going to fall out. I couldn’t even chew gum or sleep with the throbbing pain. It stings and I am tough. 10 minutes max and you should be okay. It’s amazing and really works fast. You don’t need a lot of time so don’t exceed the recommended amount of time on your teeth.

Works great. Less expensive than at the dental office. Good consistency, so it doesn't gush out onto the gums. No sensitivity like I have had in the past.

I usually purchase these through my dentist, but found these online and saved so much money through Amazon. It’s the same product and same brand, would recommend these as they do a great job and I receive many compliments about how white my teeth are all the time.

This is one of the best OTC whitening products I’ve found. I use it when I see stains on my teeth and this stuff works great. I recommend!

great price

The Opalescence 35% PF formula is a powerhouse when it comes to teeth whitening. I noticed a significant improvement in the brightness of my smile after just a few applications. Stubborn stains from coffee and red wine were noticeably reduced, and my teeth achieved a natural-looking whiteness without sensitivity issues.

This stuff is hands-down the best

This product can whiten your teeth pretty quickly. I was able to do about eight half-hour sessions in a few days and see a significant change. Be careful not to get this product on your gums because it will burn…ask me how I know