---
product_id: 63992435
title: "Opalescence 45% Syringes Teeth Whitening Gel - with PF - (4 Syringes) Refill Kit Carbamide Peroxide. Made by Ultradent, in Mint Flavor. Tooth Whitening 5359-2"
brand: "opalescence"
price: "€ 53.40"
currency: EUR
in_stock: true
reviews_count: 10
category: "Opalescence"
url: https://www.desertcart.ie/products/63992435-opalescence-45-syringes-teeth-whitening-gel-with-pf-4-syringes
store_origin: IE
region: Ireland
---

# 15-30 min Daily Whitening 45% Carbamide Peroxide Power Mint Flavor + Xylitol Sweetener Opalescence 45% Syringes Teeth Whitening Gel - with PF - (4 Syringes) Refill Kit Carbamide Peroxide. Made by Ultradent, in Mint Flavor. Tooth Whitening 5359-2

**Brand:** opalescence
**Price:** € 53.40
**Availability:** ✅ In Stock

## Summary

> ✨ Brighten Your Smile, Boost Your Confidence!

## Quick Answers

- **What is this?** Opalescence 45% Syringes Teeth Whitening Gel - with PF - (4 Syringes) Refill Kit Carbamide Peroxide. Made by Ultradent, in Mint Flavor. Tooth Whitening 5359-2 by opalescence
- **How much does it cost?** € 53.40 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ie](https://www.desertcart.ie/products/63992435-opalescence-45-syringes-teeth-whitening-gel-with-pf-4-syringes)

## 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

- • **Gentle Yet Effective:** Mint-flavored, gluten-free gel sweetened with xylitol to reduce decay risk while minimizing sensitivity.
- • **Effortless At-Home Luxury:** No LED light needed—just apply gel in your trays and enjoy professional results from your couch.
- • **Pro-Level Whitening Power:** 45% carbamide peroxide formula delivers up to 10 shades whiter teeth in just 7 days.
- • **Trusted by Experts & Millions:** Backed by 30+ years, 50+ awards, and recommended by 25,000+ dental pros worldwide.
- • **Compatible with Your Lifestyle:** Works seamlessly with Invisalign, retainers, and custom trays for a personalized whitening experience.

## Overview

Opalescence 45% Syringes Teeth Whitening Gel is a professional-grade, mint-flavored whitening solution featuring a potent 45% carbamide peroxide formula. Designed for at-home use without the need for LED lights, it whitens teeth up to 10 shades in just one week. Compatible with Invisalign and custom trays, this gluten-free, xylitol-sweetened gel is trusted by over 25,000 dental professionals and has brightened 100 million smiles globally.

## Description

Buy Opalescence 45% Syringes Teeth Whitening Gel - with PF - (4 Syringes) Refill Kit Carbamide Peroxide. Made by Ultradent, in Mint Flavor. Tooth Whitening 5359-2 on desertcart.com ✓ FREE SHIPPING on qualified orders

Review: Know what you are doing and you will get great results - This whitening gel is the same one I used to only be able to get through my dentist. I'm happy I can now buy this through desertcart. It whitens my teeth better than any other product out there. In the past, we had to buy teeth whitening trays from dentists. Now there are lots of options for inexpensive do-it-yourself trays that are just as good as the professional ones that will work perfectly with this gel. Be careful if you are not used to this type of whitener, 45% is very strong, so it should be left in place for a short time (the seller recommends 15-30 minutes). Trust me, that is long enough, and you will get good results without needing to go longer. And, make sure you do not let this sit for any time on your gums. As with any whitening gel, it will create a little ulcer if left too long. Remove the tray, wipe the gel off your gums and the corresponding area of the tray the minute you feel any burning, then put the tray back in. My dentist taught me to put only a small dot of gel at each tooth tip in the tray. Do not draw a line of gel along the inside of the trays; that's way too much gel, and do not place the gel dots at the top edge of the trays (where the gums are). Trust me, I've been whitening for many years. A little bit of gel goes a long way, and the gel will foam and cover your entire tooth surface. Four tubes of gel should last you approximately six months, even with weekly use. You also most likely do not need to whiten the tongue side of your teeth or your molars. Granted, there are a few folks who may want to. We've been told veneers cannot be whitened, but I have not found that to be false. My front teeth have had cosmetic work, and this gel does whiten them. There is a little bit of difference in the shade from my real teeth and the cosmetic work areas, but that is less obvious when I'm whitening on a regular basis. If the gel consistency isn't ideal, try storing the tubes in the refrigerator before use. At the very least, store the tubes there and store the one you're currently using at room temperature. Whitening gels can cause dental sensitivity; try brushing with a toothpaste for sensitive teeth, which will help with that. If you still have sensitivity, try their 10-35% gels.
Review: Great product but use carefully. - This whitening gel really does work but needs to be used for at least 5 consecutive days to start. This advice came from my dental hygienist. I use it for one hour at a time because it can cause your teeth and/or gums to be sensitive. With that in mind, I definitely recommend it for gentle teeth whitening!

## Features

- HI 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. Inludes 2 packs with 2 Syringes each.
- DELUXE 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 REFILL FOR TRAYS: Opalescence Teeth Whitening 45% Percent is worn for 15-30 minutes a day. If you have sensitive teeth, do not use it for more than 15 minutes every other day. It can whiten teeth up to 10 shades in 7 days, lifting stains from coffee, wine, soda, smoking, and more.
- DENTAL CARE: Teeth whitening gel refill pack includes 4 x 1.2 ml Syringes, gluten-free, kosher, sweetened with xylitol, which may reduce the risk of tooth decay. Trays not included.
- MADE IN THE USA BY ULTRADENT PRODUCTS: Recommended by over 25,000 Dental Professionals, with 50+ Teeth Whitening Awards and 100 million smiles brightened.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN  | B07CHCXR79 |
| Best Sellers Rank | #13,525 in Health & Household ( See Top 100 in Health & Household ) #15 in Teeth Whitening Gels |
| Customer Reviews | 4.5 4.5 out of 5 stars (1,490) |
| Date First Available  | May 1, 2018 |
| Is Discontinued By Manufacturer  | No |
| Item model number  | SG_B07CHCXR79_US |
| Manufacturer  | Ultradent |
| Product Dimensions  | 2 x 6.5 x 2.5 inches; 1.12 ounces |

## Product Details

- **Active Ingredients:** Carbamide Peroxide
- **Brand:** Opalescence
- **Item Form:** Gel
- **Number of Items:** 4
- **Product Benefits:** Whitening

## Images

![Opalescence 45% Syringes Teeth Whitening Gel - with PF - (4 Syringes) Refill Kit Carbamide Peroxide. Made by Ultradent, in Mint Flavor. Tooth Whitening 5359-2 - Image 1](https://m.media-amazon.com/images/I/71vAOMSUesL.jpg)

## Questions & Answers

**Q: Are these syringes the exact same ones as the ones someone else asked about one year ago? Bc if they are they expired 2 months ago**
A: I bought mine last year and they worked great.  Just like what I purchased from the dentist.  They may be new ones.  I’d ask the seller.

**Q: The product description in the title reads, “opalescence quick rf 45%” instead of pf 45%”.  Is “RF” a typo? Is this authentic opalescence PF 45%??**
A: It must be a typo in the ad.  I just looked at the actual packaging I received from my order and it says PF. It's in opalescence packaging and long before the expiration date.  I've order this from this seller several times and never disappointed.

**Q: %45 is this the highest strength**
A: Not sure, but this was the strength my dentist recommended, anything stronger makes your teeth more sensative

**Q: is this 45% the same manufacture as the 35%?**
A: Yes!

## Customer Reviews

### ⭐⭐⭐⭐⭐ Know what you are doing and you will get great results
*by D***A on October 30, 2025*

This whitening gel is the same one I used to only be able to get through my dentist. I'm happy I can now buy this through Amazon. It whitens my teeth better than any other product out there. In the past, we had to buy teeth whitening trays from dentists. Now there are lots of options for inexpensive do-it-yourself trays that are just as good as the professional ones that will work perfectly with this gel. Be careful if you are not used to this type of whitener, 45% is very strong, so it should be left in place for a short time (the seller recommends 15-30 minutes). Trust me, that is long enough, and you will get good results without needing to go longer. And, make sure you do not let this sit for any time on your gums. As with any whitening gel, it will create a little ulcer if left too long. Remove the tray, wipe the gel off your gums and the corresponding area of the tray the minute you feel any burning, then put the tray back in. My dentist taught me to put only a small dot of gel at each tooth tip in the tray. Do not draw a line of gel along the inside of the trays; that's way too much gel, and do not place the gel dots at the top edge of the trays (where the gums are). Trust me, I've been whitening for many years. A little bit of gel goes a long way, and the gel will foam and cover your entire tooth surface. Four tubes of gel should last you approximately six months, even with weekly use. You also most likely do not need to whiten the tongue side of your teeth or your molars. Granted, there are a few folks who may want to. We've been told veneers cannot be whitened, but I have not found that to be false. My front teeth have had cosmetic work, and this gel does whiten them. There is a little bit of difference in the shade from my real teeth and the cosmetic work areas, but that is less obvious when I'm whitening on a regular basis. If the gel consistency isn't ideal, try storing the tubes in the refrigerator before use. At the very least, store the tubes there and store the one you're currently using at room temperature. Whitening gels can cause dental sensitivity; try brushing with a toothpaste for sensitive teeth, which will help with that. If you still have sensitivity, try their 10-35% gels.

### ⭐⭐⭐⭐⭐ Great product but use carefully.
*by J***. on January 15, 2026*

This whitening gel really does work but needs to be used for at least 5 consecutive days to start. This advice came from my dental hygienist. I use it for one hour at a time because it can cause your teeth and/or gums to be sensitive. With that in mind, I definitely recommend it for gentle teeth whitening!

### ⭐⭐⭐⭐⭐ Works great. Very potent, don’t leave it on for more than 10 minutes!
*by J***N on December 8, 2025*

These work so well and so fast that you need to be VERY careful about the timing. It’s such a high percentage, at 45%, that it bleached my gums pure white after 20 minutes. Not exactly the look I was going for at the party that night!! luckily, it goes back to normal in a couple of days. You should check results after about five minutes and see how it looks.

## Frequently Bought Together

- Opalescence 45% Syringes Teeth Whitening Gel - with PF - (4 Syringes) Refill Kit Carbamide Peroxide. Made by Ultradent, in Mint Flavor. Tooth Whitening 5359-2
- Teeth Whitening Trays Moldable 4-Pc Bleaching Trays for Teeth Whitening with 2 Slim Retainer Cases - Comfortable, Thin Design for Tooth Bleach, Compatible with Opalescence Gel Not Included

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*Product available on Desertcart Ireland*
*Store origin: IE*
*Last updated: 2026-01-30*