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Opalescence

Opalescence 10% Teeth Whitening Gel Refill Syringes, (8ct) 5211-4 | 10% Carbamide Peroxide Mint Whitening Gel for Custom Trays. Low-Sensitivity Formula, Dentist Developed and Made in USA.

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Availability: In Stock.
Fulfilled by Amazon
Arrives Thursday, Aug 13
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Flavor Name: Mint 10


Size: 8 Count (Pack of 1)


Features

  • PROFESSIONAL LEVEL TEETH WHITENING: Opalescence - A teeth Whitening Experience in the comfort of your home, with over 30 years of expertise, 50+ Teeth Whitening Awards, and 100 million smiles brightened.
  • SENSITIVITY-FRIENDLY OPALESCENCE LINE: NO LED Light Needed or Recommended. Carbamide Peroxide Gel-filled Syringes for efficient tooth whitening and easy delivery to teeth whitening trays. Compatible with Invisalign trays, aligners, retainers, and custom dental trays (none included).
  • OPALESCENCE TEETH WHITENING GEL: Opalescence Teeth Whitening 10 Percent for 8-10 Hours a day wear, can whiten teeth up to 10 shades in 7 days. Lifts stains from coffee, wine, soda, smoking, and more.
  • DENTAL CARE: Teeth whitening gel refill pack includes 8 Syringes, gluten-free, kosher, sweetened with xylitol, which may reduce the risk of tooth decay.
  • MADE IN THE USA BY ULTRADENT PRODUCTS: Professional-level Whitening, recommended by over 25,000 Dental Professionals, with 50+ Teeth Whitening Awards and 100 million smiles brightened.

Description

Teeth Whitening Systems Watch video to see best practices on how to use your Opalescence syringes. 10% Gel Syringes is the best option for highly sensitive teeth. 15% Gel Syringes is the best option for sensitive teeth. 20% Gel Syringes is the best option for user who want are somewhat sensitive teeth but are also interested in maximizing whitening results. 35% Gel Syringes is the best option maximizing whitening results without concern for sensitivity needs. Original Toothpaste 3Pack Sensitive Relief 3Pack Opal Classic Trays Pack Opal Gentle Trays Pack Opal Gel Syringes 15% Opal Gel Syringes 20% Opal Gel Syringes 35%

Product Dimensions ‏ : ‎ 4 x 6.5 x 2.5 inches; 6 ounces


Item model number ‏ : ‎ 5394-US-8PK


UPC ‏ : ‎


Manufacturer ‏ : ‎ Ultradent


Best Sellers Rank: #54,972 in Health & Household (See Top 100 in Health & Household) #42 in Teeth Whitening Gels


#42 in Teeth Whitening Gels:


Customer Reviews: 4.5 4.5 out of 5 stars (395)


Brand Name: Opalescence


Product Benefits: Effective Teeth Whitening, Multiple Concentration Options, Sensitivity-Friendly Whitening, Customizable Wear Time, Professional-Grade Formula, Dentist-Developed, Enamel-Conscious Whitening, Sticky Viscous Gel, Helps Minimize Gel Migration, Easy Syringe Application, Compatible With Custom Whitening Trays, Xylitol-Enhanced Formula, Vegan, Certified Gluten-Free, Kosher, Made in the USA With Globally Sourced Materials, Available in Mint, Melon, and Unflavored


Item Form: Gel


Included Components: Carbamide Peroxide


Age Range Description: Adult


Set Name: Opalescence 10% Teeth Whitening Kit


Manufacturer: Ultradent


UPC: 610563544882 883205038692


Model Number: 5394-US-8PK


Manufacturer Part Number: 5394-US-8PK


Item Dimensions: 4 x 6.5 x 2.5 inches


Unit Count: 8 Count


Item Weight: 170 g


Active Ingredients: Carbamide Peroxide


Material Type Free: Gluten Free


Flavor: Mint 10


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Thursday, Aug 13

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Similar Products

Top Amazon Reviews

    • Super Sensitive and Super Whitening. You will love these
These work SO well. They don't make my teeth sensitive AT ALL. I put them in my retainer overnight and clean them off in the morning. I started noticing results from the first use. I started getting compliments after about 3/4 nights of use. They make my teeth insanely white and I recommend these to tons of people because they work so well. ... show more
Reviewed in the United States on June 20, 2026 by @Laceyy7
    • Great, Affordable way to whiten your teeth
My dentist recommended I purchase these syringes of Opalessence whitener from Amazon, saying it was cheaper for me to buy from Amazon than from him. So, I did. There are ten syringes in a pack and are very easy to use. For an upper and lower "tray", I use just a tiny dot of whitener on each tooth in the trays, top and bottom, and I can just get three days out of one syringe. Need to be careful not to overuse the product in the trays or could cause sensitivity. But, I've been using these now for a few weeks and I'm happy with the whitening results. I'm getting ready to order some more syringes. ... show more
Reviewed in the United States on September 30, 2024 by Susan R.
    • Works well with Essix/Clear retainers
Edit/Edit - It took me almost a month of almost nightly whitening to get to my desired shade, so in total of 6 syringes of 10% carbamide. I'm too lazy to share before/after photos. I'll stick with buying this product for all maintenance whitenings going forward. I'm going to finish off the last two tubes to see how close to optic piano-key white I can get with 8 syringes. Edit: After an initial 5 nights of whitening my teeth were pretty white, but part of this was due to the teeth being dehydrated (and thus more sensitive). When you take a break for 1-2 days the teeth yellow a bit as the teeth rehydrate. So I started on another regimen, and am now on the 5th night of the second round, with 0.33 in 1 tube out of a total of 4 syringes used over 14 calendar days. Now I want to keep going to see if I can make my teeth look like piano keys. These work very well in your clear retainers. No need to purchase a separate custom whitening tray just for this. Check out the YT videos on how much to actually apply to each tooth-- it's just a small bead needed to the front of each tooth. I don't express a whole line of gel across the arch, this would be too much product. Also be aware that this is a perishable product. When I received the package, it had a remaining shelf life of 6 months. After, the gel loses efficacy. It doesn't drop to zero after this date, but just something to note. Amazon comped me an additional 8 syringes at no charge when I asked about the short shelf life. Start with buying 2 packs / 4 tubes of 10% Opalescence carbamide. I bought 4 packs / 8 tubes and there's no way I can get through all this stuff. I used only 1.75 tubes doing upper and lower arches for 6 nights and got to a very nice white shade, and any more my teeth would start to look like piano keys. I would've had to start from a much darker yellow shade in order to actually use up 4 tubes and go through two whole weeks of nightly whitening. And perhaps my teeth are more sensitive than others-- Definitely glad I started with 10% carbamide and not anything higher. By the 4th or 5th night I was starting to notice increased sensitivity, despite me having brushed with Sensodyne multiple times a day, every day for over a month prior. I also had braces removed a week ago, and experienced zero sensitivity during that procedure, for reference. ... show more
Reviewed in the United States on February 13, 2025 by Jack C.
    • Whitening without the sensitivity!
I am a dental hygienist and absolutely love this product. I NEVER use a higher concentration than 10%. I use this gel in my custom trays and wear it overnight. I can get my enamel as white as piano keys. It's important to go "low and slow" to avoid sensitivity and this concentration fits the bill. It is also made of CARBAMIDE peroxide, rather than hydrogen peroxide, so it is better for avoiding sensitivity! ... show more
Reviewed in the United States on December 20, 2025 by Cori
    • It works!!
This is the same stuff that my dentist uses at his office.
Reviewed in the United States on February 23, 2026 by Janet Hill
    • Smile with confidence
These work even after using one vial. Easy to use.
Reviewed in the United States on November 5, 2025 by Lindy robinson
    • good whitener__flimsy applicator
I buy the '10' strength so that I can sleep with the trays in place, and not irritate my gums. does a very good whitening job. Comment: the applicator is flimsy and the tip may separate when applying the gel to trays. Put it back in place, and proceed slowly and deliberately.
Reviewed in the United States on July 17, 2020 by Gregory The Normal
    • Try it!!
I received a sample of this from my orthodontist after my braces came off. He gave me a syringe to use with my clear essix retainers. I noticed it making a difference so I decided to buy a few more. I have used the first set of 4 and I am pleased with my results so far! I notice a difference after each use. At first, I only used it for about 30 min. (via my ortho's advice) and slowly increased it to an hour, two hours, etc. This is to avoid any sensitivity to the product. I never had any major problems with it. I did notice a bit of sensitivity on my gums, but nothing that didn't go away after a short period of time. Now, I wear it overnight with no issues! It's decently priced here on Amazon and I much prefer the convenience of using my essix retainers and leaving it over night over the Crest whitening strips. I might even try the 15% next time instead of the 10% :) ... show more
Reviewed in the United States on September 20, 2017 by Elena

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