Opalescence 20% Teeth Whitening Refill Kit (2 Packs / 4 Syringes) Carbamide Peroxide. Made by Ultradent, in Mint Flavor. Tooth Whitening Refill Syringes - B-5196-4

Absolutely love this product. I have worked in the dental industry in the past. I was a huge fan of night white ACP.Recently, have tried this brand from my orthodontist, and the results were so quick and painless. I instantly went to Amazon to buy more. To my surprise it was very affordable.I would recommend doing in the evening after you have finished eating and can go at least 12 hours before eating or drinking anything.When bleaching your teeth, you are roughing the surface of the tooth enamel, which makes you more prone to staining. With that in mind, you have to keep that in the back of your head for what you plan on eating the following week. If you drink coffee, you have to drink it through a straw and make sure you brush your teeth right after pasta sauce, beets, any food that is prone to staining will stain in your teeth after their bleached. I remember telling my clients that if you were to wipe it off of an untreated quartz countertop and it would leave a stain, it would leave a stain on your teeth as well.That all being said this was a phenomenal product. Please ask a professional for trays and do not overuse this as it can permanently damage your teeth and create extreme sensitivity, along with weakening the tooth structure that is with all whitening products even in office treatments. You should probably be doing whitening in stages and build up your tolerance. You could do 15 minutes one day and the next only be able to comfortably do five you don’t want to have super reactive nerve pain as it is one of the most painful pains.I know it sounds silly, but ask your dentist if you are a good candidate for teeth whitening. You may be a better candidate for veneers if your teeth are intrinsic stains, meaning the stain is from within.

Functions effectively. Will thicken if opened but not used promptly. Does significantly whiten teeth.

This teeth whitening gel works very well! For the best results, use it every other day for a week. However, it is not recommended for those with sensitive gums or teeth. Be sure to follow the instructions carefully and avoid wearing it longer than directed, as overuse can cause significant sensitivity.A personal tip: I apply a thin layer of coconut oil to my gums with a Q-tip before using the whitening gel. This helps protect my gums from irritation.Overall, I’m very happy with this product and highly recommend it to anyone looking for an effective teeth-whitening solution!

Works fast. But you need to leave it on for 2 hours.

Teeth were clearly whiter after one use.

Much more affordable thank buying from the dentist! I have used these for years and they work so well. I whiten my teeth for a day or 2 every 3-6months and my teeth stay white! I dont have any sensitivities to this either which is a must. My teeth are sensitive to cold and other things so finding a whitener that works and doesn't hurt was difficult. These are much more effective and easier to use than the whitening strips. The taste is good as well.

I’m a person whose teeth could be whiter, so I bought these with a gift card I got for the holidays. I’ve only used them twice, but here is my review.These actually work, and even better I have had no problems with sensitivity. That’s nice. But it would be nicer if these included mold able teeth trays. I had to buy those separate.One thing I wish I would’ve looked into more is how long you’re supposed to wear these. For the 20% (what I bought) it suggests 2-4 hours for a single application! I suffer from fairly bad dry mouth, so 2 hours is the max I can go before I have to drink something. Also, I don’t exactly have 2-4 hours of my day that I can give to these for multiple days in a row. I am busy like many other people are. Honestly I wouldn’t have bought these if I knew that.I personally recommend this brand, but instead of these I recommend the prefilled trays that are offered. I’ve read they only require 30 minutes, which is much more doable. Yes it’s more money, but for me personally it would be worth it to save my time and actually be able to use them!3 stars because these actually work-2 stars because it takes at least 2 hours to use them

Been using these for years. Dentist approves. Be careful not to add too much it can burn your gums. Yes I’ve done that by mistake.My teeth are white and I use it twice or three times a year. No tooth damage. Quality product I used to buy from my dentist.Just make sure you have your own teeth guard to wear. I use it for 45 min.