---
product_id: 7672230
title: "Opalescence 10% Teeth Whitening Kit - Gel Syringes Refills - Low Sensitivy (8 Units) - Fluoride, Carbamide Peroxide - Made in The USA by Ultradent 5211-4"
brand: "opalescence"
price: "€ 139.90"
currency: EUR
in_stock: true
reviews_count: 8
category: "Opalescence"
url: https://www.desertcart.com.cy/products/7672230-opalescence-10-teeth-whitening-kit-gel-syringes-refills-low-sensitivy
store_origin: CY
region: Cyprus
---

# 8 syringes - up to 7 days whitening 10% Carbamide Peroxide - gentle yet effective Made in USA - trusted professional quality Opalescence 10% Teeth Whitening Kit - Gel Syringes Refills - Low Sensitivy (8 Units) - Fluoride, Carbamide Peroxide - Made in The USA by Ultradent 5211-4

**Brand:** opalescence
**Price:** € 139.90
**Availability:** ✅ In Stock

## Summary

> ✨ Brighten your smile, not your sensitivity! 🦷

## Quick Answers

- **What is this?** Opalescence 10% Teeth Whitening Kit - Gel Syringes Refills - Low Sensitivy (8 Units) - Fluoride, Carbamide Peroxide - Made in The USA by Ultradent 5211-4 by opalescence
- **How much does it cost?** € 139.90 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.cy](https://www.desertcart.com.cy/products/7672230-opalescence-10-teeth-whitening-kit-gel-syringes-refills-low-sensitivy)

## Best For

- opalescence enthusiasts

## Why This Product

- Trusted opalescence brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Low sensitivity formula:** Gentle carbamide peroxide gel designed for overnight use with minimal discomfort.
- • **Compatible with clear aligners:** Works seamlessly with Invisalign, retainers, and custom trays for effortless application.
- • **Trusted by 25,000+ dental pros:** Backed by 30+ years of expertise and 50+ industry awards for a confident smile.
- • **Professional-grade whitening at home:** Achieve up to 10 shades whiter teeth without the dental chair hassle.
- • **Long-lasting results in just one week:** Wear 8-10 hours daily to lift stains from coffee, wine, and smoking effectively.

## Overview

Opalescence 10% Teeth Whitening Kit offers a professional-level, low-sensitivity whitening experience with carbamide peroxide gel syringes. Made in the USA by Ultradent, this kit includes 8 syringes designed for 8-10 hours daily wear, whitening teeth up to 10 shades in 7 days. Compatible with Invisalign and retainers, it’s trusted by over 25,000 dental professionals and sweetened with xylitol to support dental health.

## Description

desertcart.com: Opalescence 10% Teeth Whitening Kit - Gel Syringes Refills - Low Sensitivy (8 Units) - Fluoride, Carbamide Peroxide - Made in The USA by Ultradent 5211-4 : Health & Household

Review: 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!
Review: 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. desertcart 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.

## 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.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B000CRJB7O |
| Active Ingredients | Carbamide Peroxide |
| Age Range Description | Adult |
| Best Sellers Rank | #77,167 in Health & Household ( See Top 100 in Health & Household ) #65 in Teeth Whitening Gels |
| Brand | Opalescence |
| Brand Name | Opalescence |
| Customer Reviews | 4.5 out of 5 stars 388 Reviews |
| Flavor | Mint 10 |
| Included Components | Carbamide Peroxide |
| Item Dimensions | 4 x 6.5 x 2.5 inches |
| Item Form | Gel |
| Item Weight | 170 Grams |
| Manufacturer | Ultradent |
| Material Type Free | Gluten Free |
| Product Benefits | Whitening |
| UPC | 610563544882 883205038692 |
| Unit Count | 8 Count |

## Product Details

- **Brand:** Opalescence
- **Active Ingredients:** Carbamide Peroxide
- **Product Benefits:** Whitening
- **Item Form:** Gel
- **Material Type Free:** Gluten Free

## Images

![Opalescence 10% Teeth Whitening Kit - Gel Syringes Refills - Low Sensitivy (8 Units) - Fluoride, Carbamide Peroxide - Made in The USA by Ultradent 5211-4 - Image 1](https://m.media-amazon.com/images/I/715mnBEaagL.jpg)

## Questions & Answers

**Q: Can you tell what the expiration date is on this particular item?**
A: 8-2018

**Q: what are the expiration date for the 10% whitening syringe ? thanks**
A: Oct 31, 2021

**Q: I called opalesssence oct 4 2021 & asked if they sold their product on amazon and i was told they do not. are you claiming this product is authentic ?**
A: iServe is Ultradent’s authorized seller on Amazon. All Ultradent/Opalescence items purchased through iServe are authentic products. If you ever have a concern with an Ultradent/Opalescence product received from iServe please contact us directly. This information can be confirmed by contacting Ultradent directly at 888-230-1420.

**Q: Is the expiration date still 8/2018 ?**
A: I'm sorry, I don't know, I can' t find an expiration date of the package.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Whitening without the sensitivity!
*by C***I on December 20, 2025*

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!

### ⭐⭐⭐⭐⭐ Works well with Essix/Clear retainers
*by J***. on February 13, 2025*

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.

### ⭐⭐⭐⭐⭐ Great, Affordable way to whiten your teeth
*by S***. on September 30, 2024*

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.

## Frequently Bought Together

- Opalescence PF 10% Teeth Whitening 8pk (Latest Product)
- Opalescence Whitening Toothpaste - Pack of 1 - Fluoride Oral Care - 4.7 Oz - Cool Mint - TP-5166-1

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*Product available on Desertcart Cyprus*
*Store origin: CY*
*Last updated: 2026-03-18*