Opalescence 35% CP Mint - Gel Syringes Teeth Whitening - Refill Kit (2 Packs / 4 Syringes Total) Carbamide Peroxide Gel. Made by Ultradent. Tooth Whitening Refill Syringes 5197-2

WORKS!! The best whitening I have found. But make sure you put Vaseline on your gum line with you will chemical BURN your gums. My recommendation if you feel any burning at all, take the tray out and apply Vaseline to that area, because the burning will only get worse.

Same exact product my dentist uses for a lot less than what he charges for it.I usually buy the 20% solution but I’d thought I try this stronger solution this time and it worked well but a little too strong for me, my gums were very sensitive after using this product.In the future I’ll be going back to the 20% solution. This product will definitely whiten your teeth.

Wow!! Great product! My dental hygienist recommended me this product and I can’t believe how much my teeth have changed since using this product! Received so my compliments from my family and friends on how white my teeth were when I smiled. Great value for money! 5 stars

This stuff works. Leave on for 30 min with a mouthguard and if you have sensitive teeth be prepared to have some feeling at the beginning - mine went away quickly. Don’t swallow it and just spit any saliva accumulated. Idk if other methods are better but this will defo whiten your teeth quick - I usually do a couple rounds over the course of a week to get a noticeable difference tho.

This stuff is amazing but don’t expect immediate results. The chemical reaction takes 2-6 hours to develop and is not sped up by UV. This is a gentler alternative to pure peroxide whiteners. That being said, it’s also extremely strong and may cause gum damage if not done properly. Invest in gingival barriers + UV light if you plan to do your own whitening. My teeth were extremely yellow and are drastically whiter after 2 syringes. I’ve never had teeth whiting done so i’m very impressed! Do not use this product unless you plan to use it correctly because it’s very strong!

Always follow directions on this product and it will work effectively. Worth the money.

Tried and true product that has always worked for us. Not to say there aren’t better products out there but this gives us the results for a fare price.

With products as this, it is best to precursor the review with some instruction and expectation setting:Instructions:--This product is meant to be used as a refill to custom trays fitted by your dentist. Otherwise, you will have issues with uneven application and gum burning.--Application muust follow instructions that are provided. Do not overapply or the gel will burn your gums and turn them white for a little while.Expectations:--At the end of the day, research suggests that the 35% whitens as much as the 15%. The difference is twofold: The 35% needs to onlt stay on for 30 minutes, but the 15% needs to stay on an hour. Second, the 35% will get your teeth whiter faster. E.g., if it takes 12 weeks for the 15% to get to the desired whitening, it may take 8 weeks for the 35%.--The 35% will make your teeth more sensitive than 15%. For me, it was worth the extra sensitivity to get faster results.--It takes time! Results do not occur overnight for most people. Expect 12-16 weeks, applying once a day at night for 30 minutes. If it occurs faster, use the remaining gel to periodically keep them white.--The gum line part of the tooth may still be yellowish. My guess is it is hard to get right to the gum line without burning. So the application will still be a little uneven.My review:I had noticable results after 4 weeks, from 2-4 shades. One tooth was 4 shades, most were 3, and the rest were 1 to 2. I am under Dentist care for the entire process.For the 4 week period, the Dentist was highly pleased with the progress. I was pleased as well. After 6 weeks, though, the progress seemed slower, and the lower teeth are still too yellow.As well, one issue remains: one upper front tooth would not whiten well. It had undergone tramua when I was young. So, the 2 upper front teeth will need veneers. Right now it is a race to whiten as much as possible to get the whitest shade of veneers possible.My method:-- I used 12) 15% gel for 6 weeks that the denstist provided-- I used (8)35% gel for 4 weeks that I bought from Amazon-- I applied twice a day for at least half the time-- I used between 1/3 to 1/2 of the syringe per applicationIn all, you have to be patient and not expect quick results. Some teeth will whiten faster and others may not whiten much at all. From what I researched and the Denist's input, results widely vary. However, you should certainly see viable results and the effort is not hard. 30 minutes after bushing and flossing is pretty easy.I disagree with the low ratings for this product. Just because someone does not use the product properly, does not reflect on the product quality. Results based on non-custom trays are invalid in my opinion and should not reflect on the rating.I would have given a 5 star, but I felt somehow they need to get the gel to the gumline without burning, providing full tooth coverage.