Opalescence 45% Syringes Teeth Whitening Gel - with PF - (8 Syringes) Refill Kit Carbamide Peroxide. Made by Ultradent, in Mint Flavor. Tooth Whitening 5359-4

Works well

Love this stuff. Definitely burns but worth it

My teeth whitened at least 2 shades. Not sensitive much.

Works great and fast!

Omg. Do it. I’ve tried so many things - this has whitened my teeth 5-6 shades in 2 WEEKS

This whitening gel works very well! To increase its efficacy, I use 4 dental cotton rolls under my cheeks as well as a dental mouth widener which helps me accurately apply the gel to my teeth. I loaded the syringes into an empty touch up paint pen, which I find works better than inserting the gel into a tooth tray. That way, I can paint the gel directly onto my teeth. The last step that I do is to use an LED tooth whitening retainer. I keep the gel on my teeth for 1 hour. After 1 hour has elapsed, I remove the LED retainer, remove the dental rolls, and carefully brush the excess gel from my teeth with a spare toothbrush. My teeth are 6 shades whiter after doing this process daily for 2 weeks. I advise immense accuracy while applying the gel, because getting it on your gums will burn significantly.

A little pricey, but works very well. still cheaper than at dentist office

These work! I didn’t know they had started making a gel with higher intensity until I checked Amazon. Lower dose wasn’t working at all for me anymore.It is strong. So be careful. Use sparingly at first.