Opalescence 35% CP Mint - Gel Syringes Teeth Whitening - Refill Kit - Carbamide Peroxide Gel. Made by Ultradent. Tooth Whitening Refill Syringes 5197 (0.04 Fl Oz (Pack of 4))

High quality. Works as intended. They noticeably whiten teeth, even after 1 use. They do not make my teeth as sensitive, compared to other products.

The product works! The sellers are aware it will make your gum and teeth sensitive. in the box there is instructions of how to lower teeth sensitivity when applying the gel. I had the gel on for 2-4 hours and I can see results already. I suggest this but know it will make your teeth tingle. tray is not included. I used my retainer as a tray

Have been impressed with whitening. Noticed a difference after just a few uses. Pleasant taste, comes in small syringe, easy to use. These are not regular 3 ml strings. They contain less than 1ml. For OTC gel and value I consider it a good buy. I did notice a slight bubbling/popping effect while wearing the gel in the mold. Not unpleasant.

I’ve used tons of whitening products, but this is BY FAR the best. It noticeably whitens my teeth in just half an hour - and get me to my desired whiteness in just a few uses. Be aware: this gel is super strong, so you don’t want to leave it on too long (it will make your teeth sensitive) & try no to get too much on your gums (it burns and can leave them temporarily bleached). With all that said, this is definitely the most effective whitening gel out there. It is used in dentists offices.

I do notice that my teeth are whiter. My teeth didn't start out extremely yellow so I didn't see much of a difference. I am hoping that with time it will give me that bright white look. So far it hasn't and I used a whole tube. It also did not make my teeth sensitive which I really appreciated.

Actually works!!! This product does work on my older and naturally darker teeth. Sensitive at first but it stops soon into treatment. I started slowly time wise. I was surprised as a professional dental brightening had very little effect.

After completing my orthodontic treatment, the orthodontist “gave” me a Peroxide-based 20% ten-day treatment system. But I didn’t get the results I wanted. So I called my dentist to see what they had, and they had this exact same product, but they would create the liners too for $540! It was the same treatment, but I already had the liners. So for $30, this was a no brainer. After a few treatments, I can see the biggest difference. I may just use a few more, but let’s face it, I’m not going with the “Ross” look (from Friends). My teeth have been more sensitive throughout my two+ year orthodontist process, but I haven’t had any sensitivities since completing the process. The only caution that I would give (like the others) is it will bring the gums. So here’s what I’ve done: Apply a very small bead in the center-front of each tooth imprint of the dental trays/liners. The line seems to be too much. Add a coating of vasoline around your gums with either your finger or a q-tip. Then apply. If you do feel it burning your gums, simply pull off, and use a soft- white toothbrush on the area of the liners/trays to remove the gel from the are closest to your gums. Simple. I was able to tolerate it for the full 30 minutes. Would highly recommend, but definitely use a very small amount and use with caution! I’m so happy with my newly straightened, whitened teeth! In the words of Buddy the Elf, smiling’s my favorite! Now I can smile with confidence!

In half an hour- twice a week - I keep my teeth looking as white as they were fifty years ago. People notice my smile and think I'm a lot younger than I am. As an avid coffee drinker my teeth were yellowing as I aged and after ten years of Opalescence, I'm still grateful to my Dentist on recommending this brand. The dentist took an impression of my teeth, and I got back the rubber-plastic shapes, that I put the Opalescense gel into.

Best whitening gel on the market- sold at most dental offices. Be careful as it can easily bleach the gums if you do not have properly fitted trays! Only wear them for about 25 mins max. Bleaching goes away in about 2 hours (swish w warm salt water until gums heal).

Nice

Excellent products and excellent customer service as well

The product burned my gums and caused severe headaches that lasted for two days, such side effects where not mentioned

It was damaged and the liquid from the item is out i need a recovery