Teeth Whitening Gel Refill 8x Syringes Universal 35% Carbamide Peroxide (XL)

I've been using Dr. Song whitening kit for 1 year, and it had an incredible effect on my teeth. My teeth are much whiter compare to last year. The whitening session is absolutely painless! I will definitely keep on ordering this product.

After just a couple of uses, I could already see a difference in my teeth — especially when comparing them to the whitening guide included in the box. It actually works, which is always nice when you’re trying something new. I also appreciated that they threw in an extra syringe of gel; little touches like that make a difference.I had read a few reviews mentioning black specks in the gel, but thankfully mine was completely smooth and clear. The only small issue I ran into was that the gel tends to come out in a thick glob because the syringe stopper sticks a bit, but it’s easy enough to spread around in the mouth trays. The taste isn’t great, but honestly, that’s pretty standard with whitening gels.Overall, this kit delivers what it promises. My teeth look brighter, it’s easy to use, and the value for the price is solid. If you’re looking for a whitening system that actually makes a difference without spending a ton, this one’s definitely worth trying.

My favorite, for sure. Tried many brands.Burns less and whitens without the oversensitivity.Pro tip is use vitamin E q-tips to coat your gums before the whitening treatment. This allows you to leave treatment on longer.I do about 30 mins at a time and can do every other day if trying to get them back bright after slacking off. Probably two 20 min sessions a week would keep them bright white. L

I'd like to give this a 5 star rating, but have to take off a star due to packaging. The product itself works, just like any other 35% solution (most of which are much more expensive). I have regular trays (not the light activated ones), used this for 10 minutes the first time, and saw significant improvement! I generally use 35% solution for 3-4 days consecutively, then I'm good for at least a month or 2. I've done 2 treatments and still have about 25-30% of a syringe left, so a little goes a long way.My complaint is in the packaging. The only thing telling you what this product is is a sticker on the box. The syringes aren't labeled, there isn't an "ingredient list" type of thing inside the box. This doesn't really inspire confidence in the product. The instruction sheet provided is only for a light activated tray, so I had to do some additional research to make sure this would work in regular trays. Finally, the syringes don't move really smooth. You need to use a little pressure, and then Splat! A whole blob comes out at once. Luckily, they include a tiny brush, which I then used to spread the blob around the tray, and transfer some over to the other tray. This has happened both times.The taste is horrible, but I'm not faulting Dr. Song for this, since every bleach I've used tastes horrible.

Dr. Songs Teeth Whitening Gel does work as promised. It does whiten with about as well as Opalescence 35%. However, the packaging of the product leaves a bit to be desired.I have custom molded teeth trays I got from my dentist a few years back. The teeth trays have small, molded pockets to hold the gel on the front of each tooth. I have used Opalescence every few months for a "touch up" of my teeth.The syringes for Dr Song's gel are larger than Opalescence and have more gel but there is no pointed tip for accurate placement of the gel. Also, even though I put the cap back on the Song's gel, it seems to coagulate a little in the tip between uses. Every time I use the syringe the first bit of produce gushes out into the teeth tray. I then have to push the extra gel around with the syringe tip to try to distribute it to the other teeth pockets. The bottom line is I use much more gel with each use so the extra gel in the syringe is really not netting more uses.It may be that Dr Song's get is really made for generic teeth trays which would probably need more gel since they are not custom molded. Perhaps if Dr Song's included a pointed tip you could attach to the syringe it would work better for me. The Dr Song's gel does work but I will probably go back to the Opalescence after I use up the Dr Son'g syringes I have.

Have bought this 5 times now. 35% carbamide is the way to go for teeth whitening. Use it 15mins at a time, reapply and do 3 treatments and you will notice crazy whitening the next day. Very low sensitivity compared to white strips and way cheaper!! This is my favorite low cost peroxide. Don't mess w anything lower than 35% it won't work fast enough. And don't go above 35% either I did 44% carbamide and it gave me sensitivity overnight. 35% is the sweet spot. Have told so many people about this stuff it's literally a cheat code to white teeth. U just need a rubber tray or something to put around your teeth after you use the gel so the gel doesn't wipe off immediately