ProDental Teeth Whitening Gel Syringe Refill 10 Pack, 35% Carbamide Peroxide - 60 Treatments, Faster Results Than Tooth Whitening Strips - Pen - Powders and Toothpaste, Safe for Sensitive Teeth

OK refills overall, but a little watery compared to what I have become accustomed to in the mouth guard

This review is for "ProDental Teeth Whitening Gel Syringe Refill 10 Pack | 35% Carbamide Peroxide". I have tried many different products over about 12 years. I really like this one and will not hesitate to buy it again. Why? I have found that most will work okay "IF" you can get the product on the trays easily and in the correct amount. This generally comes down to the type of tip on the applicator syringe and the viscosity of the gel. If the tip is too big you will probably waste the gel AND irritate your gums. If the gel is too thick you may not get it out the end of a properly sized tip so you remove the tip and then you get a big blob of it. This product has just the right sized tip (and not just one tip that you move from syringe to syringe, it has a tip and cap for each). The gel also has just the right consistency to get the right amount in each well of the trays.

Wished it worked better than I expected. As a smoker it did help with yellow of my teeth. Better something is better than nothing.

I found these and was so excited to switch from the brand I was using! They were a fraction of the price but now I see why! The gel is terrible, I normally put gel in my Invisalign retainers but instead when trying to open the container the gel went al over the mirror. These is no easy way to use this! Once I got it in my retainer and tried to whiten the gel is too liquidy to stay. Long story short, spend money on the brand that works. I ended up throwing these away.

The gel is much thinner than the brand I usually get, but it was sooooo much cheaper. When I use the trays that were made at the dentist, the gel leaks out. It takes some very lady-like spitting to get the excess out of my mouth. It does seem to be working, though, so I'd say give it a try. The company will even provide custom trays.