---
product_id: 7672224
title: "- 20% Carbamide Peroxide Teeth Whitening Gel Syringes - 5196-4 -"
brand: "opalescence"
price: "¥20164"
currency: JPY
in_stock: true
reviews_count: 13
category: "Opalescence"
url: https://www.desertcart.jp/products/7672224-20-carbamide-peroxide-teeth-whitening-gel-syringes-5196-4
store_origin: JP
region: Japan
---

# 2-4 Hours Daily Wear 20% Carbamide Peroxide Power Made in USA by Ultradent - 20% Carbamide Peroxide Teeth Whitening Gel Syringes - 5196-4 -

**Brand:** opalescence
**Price:** ¥20164
**Availability:** ✅ In Stock

## Summary

> ✨ Brighten your smile, own the room! 💼

## Quick Answers

- **What is this?** - 20% Carbamide Peroxide Teeth Whitening Gel Syringes - 5196-4 - by opalescence
- **How much does it cost?** ¥20164 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/7672224-20-carbamide-peroxide-teeth-whitening-gel-syringes-5196-4)

## 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

- • **No LED Light Needed:** Convenient, nonabrasive formula works without extra devices or hassle.
- • **Enamel-Safe & Sweetened:** Gluten-free, xylitol-sweetened gel that protects enamel and reduces decay risk.
- • **Compatible with Aligners:** Seamlessly fits Invisalign, retainers, and custom trays for easy use.
- • **Fast & Effective Results:** Whiten teeth up to 10 shades in just 7 days with minimal effort.
- • **Professional-Level Whitening:** Trusted by 25,000+ dentists and 100M+ smiles brightened worldwide.

## Overview

Opalescence 20% Carbamide Peroxide Teeth Whitening Gel Syringes deliver professional-grade whitening at home with a dentist-developed, enamel-safe formula. This mint-flavored gel whitens teeth up to 10 shades in 7 days during 2-4 hours of daily wear, requires no LED light, and fits all major dental trays including Invisalign. Made in the USA by Ultradent, it’s trusted by over 25,000 dental professionals and has brightened 100 million smiles globally.

## Description

Buy Opalescence 20% Carbamide Peroxide Teeth Whitening Gel Syringes - 5196-4 - | Refills for Trays. Professional-Level - Low-Sensitivity Formula (8ct) Mint, Developed by Dentist. Made in USA by Ultradent. on desertcart.com ✓ FREE SHIPPING on qualified orders

Review: Brightening! - It’s exactly what it is. Recommended by my dentist. Have been using for a year and keep buying more. Love it! Can cause sensitivity but it leaves when you take a day or two break.
Review: Really great stain removal and teeth whitening - 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 desertcart 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.

## Features

- PROFESSIONAL LEVEL TEETH WHITENING: Opal by 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.
- DELUXE OPAL BY 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 20 Percent for 2-4 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 8x 1.2 ml 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 | B0027O2BW2 |
| Active Ingredients | Carbamide Peroxide |
| Age Range Description | Adult |
| Best Sellers Rank | #9,131 in Health & Household ( See Top 100 in Health & Household ) #8 in Teeth Whitening Gels |
| Brand | Opalescence |
| Brand Name | Opalescence |
| Customer Reviews | 4.5 out of 5 stars 5,361 Reviews |
| Flavor | Mint |
| Included Components | Carbamide Peroxide |
| Item Dimensions | 6 x 3.5 x 1 inches |
| Item Form | Gel |
| Item Weight | 1.2 ounces |
| Manufacturer | Ultradent |
| Manufacturer Part Number | 5400-US-8PK |
| Material Features | Gluten Free |
| Material Type Free | Gluten Free |
| Model Number | 5370-U |
| Number of Items | 8 |
| Product Benefits | Dentist Created Formula, Enamel Protection, Fast Treatment, No LED Light Required, Nonabrasive Whitening, Professional Level Teeth Whitening Product Benefits Dentist Created Formula, Enamel Protection, Fast Treatment, No LED Light Required, Nonabrasive Whitening, Professional Level Teeth Whitening See more |
| Set Name | Opalescence 20% Gel Syringes Refill Kit |
| UPC | 883205038708 |

## Product Details

- **Active Ingredients:** Carbamide Peroxide
- **Brand:** Opalescence
- **Item Form:** Gel
- **Number of Items:** 8

## Images

![- 20% Carbamide Peroxide Teeth Whitening Gel Syringes - 5196-4 - - Image 1](https://m.media-amazon.com/images/I/61UurNQIjzL.jpg)

## Available Options

This product comes in different **Color, Size** options.

## Questions & Answers

**Q: what is the expiration date. ?**
A: About 2 years

**Q: Does it come with all 4 syringes?**
A: Yes

**Q: What is the expiration date?**
A: Expiration date: Example: J055 (J - is a batch letter; next two digits are an expiration month; last digit is expiration year), the expiration date in the example above is May/2015.

**Q: What happens if you use this while having cavities?**
A: Those with gum disease, worn enamel, cavities, and exposed roots may not be good candidates for whitening their teeth. Opalescence recommends visiting your dentist for a pre-whitening consultation so that they can help you choose the professional option that best fits your needs.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Brightening!
*by S***E on August 10, 2026*

It’s exactly what it is. Recommended by my dentist. Have been using for a year and keep buying more. Love it! Can cause sensitivity but it leaves when you take a day or two break.

### ⭐⭐⭐⭐⭐ Really great stain removal and teeth whitening
*by L***P on February 9, 2025*

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.

### ⭐⭐⭐⭐⭐ Effective and easy-to-use teeth whitening — great results!
*by B***5 on May 6, 2026*

I purchased the Opalescence 20% Teeth Whitening Refill Kit and was very happy with the results. The 4-syringe pack was a great value and easy to use with my existing dental trays. The 20% carbamide peroxide formula was effective and I saw a noticeable whitening of my teeth after just a few applications. The mint flavor made it a much better experience than other products I have tried. It was gentle and did not cause significant tooth sensitivity. A reliable, professional-grade whitening kit that I would definitely recommend. I have already purchased it twice and will continue to use it.

## Frequently Bought Together

- Opalescence 20% Gel Syringes Teeth Whitening - Refill Kit (8 Syringes) Carbamide Peroxide, Fluoride. Made by Ultradent, in Mint Flavor. Tooth Whitening - 5196-4
- 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

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-09-05*