---
product_id: 33132589
title: "3D Whitestrips Age Renew – Teeth Whitening Kit, 21 Treatments, Each with 1 Upper/1Lower, 42 Strips – Crest 3DWhite Teeth Whitening Strips"
brand: "crest"
price: "€ 162.79"
currency: EUR
in_stock: true
reviews_count: 11
category: "Crest"
url: https://www.desertcart.com.cy/products/33132589-3d-whitestrips-age-renew-teeth-whitening-kit-21-treatments-each
store_origin: CY
region: Cyprus
---

# 21 treatments, 42 strips total Highest hydrogen peroxide concentration Advanced Seal Tech for no-slip fit 3D Whitestrips Age Renew – Teeth Whitening Kit, 21 Treatments, Each with 1 Upper/1Lower, 42 Strips – Crest 3DWhite Teeth Whitening Strips

**Brand:** crest
**Price:** € 162.79
**Availability:** ✅ In Stock

## Summary

> ✨ Flash your brightest smile—because your confidence deserves the spotlight!

## Quick Answers

- **What is this?** 3D Whitestrips Age Renew – Teeth Whitening Kit, 21 Treatments, Each with 1 Upper/1Lower, 42 Strips – Crest 3DWhite Teeth Whitening Strips by crest
- **How much does it cost?** € 162.79 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/33132589-3d-whitestrips-age-renew-teeth-whitening-kit-21-treatments-each)

## Best For

- crest enthusiasts

## Why This Product

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

## Key Features

- • **Long-Lasting Supply:** 42 strips for 21 treatments—whiten now, glow for months
- • **No-Slip Advanced Seal:** Talk and sip water while whitening—strips stay put
- • **Quick Visible Results:** Noticeable brightness boost in just 3 weeks of daily 1-hour use
- • **Custom Flex Fit Design:** Molds perfectly to your unique smile for all-day comfort
- • **Pro-Level Whitening Power:** Removes 25+ years of stains for a 28-level whiter smile

## Overview

Crest 3D Whitestrips Age Renew delivers professional-grade whitening with 42 flexible, no-slip strips designed to fit your smile perfectly. Using the highest concentration of hydrogen peroxide safely, it removes decades of stains to reveal a smile up to 28 shades whiter in just 3 weeks. Enjoy the freedom to talk and drink water during treatment, backed by 21 easy daily sessions that fit seamlessly into your busy lifestyle.

## Description

Product Description Want to your whiten teeth at home? Try Crest 3DWhitestrips Supreme Bright. This teeth whitening treatment provides professional-level whitening that removes over 25 years of stains, with a comfortable, no-slip whitening experience. The Advanced Seal Technology's no-slip grip means the strips stay put until you take them off, allowing you to talk and even drink water while whitening your teeth. Choose Crest 3DWhitestrips Supreme Bright teeth from the #1 dentist-recommended at-home teeth whitening brand. Using our highest level of hydrogen peroxide whitening ingredient, this enamel-safe, at-home teeth whitening kit will make your teeth 28 levels whiter to get a 100% noticeably whiter smile, guaranteed. This at-home teeth whitening kit will make your smile 28 levels whiter in just 3 weeks. Simply apply Crest 3DWhitestrips Supreme Bright White for 60 minutes a day for 21 days. This pack includes 42 teeth whitening strips, 21 for your top teeth and 21 for your bottom teeth, to be used over the course of 21 days. Manufacturer's Notice IMPORTANT TIPS: • This item does require consumers to use correctly and errors can occur if not applied correctly by the consumer. • The product is known to cause some teeth sensitivity due to the effectiveness of the product (and this sensitivity varies by consumer and to be used with consumer discretion) • On occasion, consumers have been known to not remove the adhesive entirely or incorrectly; which removes the product and or does not allow proper adhesion (“not sticky enough”) P.when('A').execute(function(A) { A.on('a:expander:toggle_description:toggle:collapse', function(data) { window.scroll(0, data.expander.$expander[0].offsetTop-100); }); }); Brand Story By Crest See more

Review: THE best crest whitestrips I've ever tried - These are without a doubt the most whitening/brightening whitestrips I've ever used. The strips are so uniform and the whitening ingredients are so well spread onto the strips it's crystal clear.I've been using crest whitestrips for 14-15 years now. I started all the way back before the non-slip was even invented and you'd have to just kinda bite down on your teeth to prevent them from sliding around. They've been VERY effective in the past, which is why I've continued to use them throughout the years, but this pack right here is the most effective one I've ever used. I'm only halfway done with the set but my teeth are OUTLANDISHLY white. I started getting compliments from coworkers my 3rd day in. I did some research after buying them because I wanted to know what made these different, and it turns out it has the highest hydrogen peroxide concentration from all other strips out there. Their other strips contain 3.5%, 8% etc, this one's supplying the highest concentration you can get. I will say, if you're new to whitestrips they work by oxidizing the surface of the tooth to remove the stains soaked into the teeth. It's enamal safe, but you'll notice sensitivity. By day 5 I had to go out and get some sensodyne . If you're having sensitivity issues, I recommend getting sensydne and when you go to brush your teeth, spit out the toothpaste, not rinse. When you go to bed, brush softly and spit out the toothpaste, go right to bed and the floride toothpaste will help stick to your teeth and stop that sensitivity.
Review: They do a great job whitening my teeth at age 73 - Love these! They do work!

## Features

- Lasts 18 months and beyond
- Use once a day for 1 hour.
- Our whitest white for a multi-dimensional smile.
- Exclusive Flex Fit technology design stretches and molds to custom fit your unique smile.
- Advanced Seal Technology's no slip grip stays put so you can talk and drink water while whitening teeth. Note : Storing Crest 3D White Whitestrips in a refrigerator is fine, however, storing product in a freezer is not recommended

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN  | B01INDUUN2 |
| Best Sellers Rank | #24,115 in Health & Household ( See Top 100 in Health & Household ) #32 in Teeth Whitening Strips |
| Customer Reviews | 4.4 4.4 out of 5 stars (2,178) |
| Is Discontinued By Manufacturer  | No |
| Item model number  | 1.09E+13 |
| Manufacturer  | Procter & Gamble |
| Product Dimensions  | 139.8 x 41.6 x 143.5 inches; 0.6 ounces |
| UPC  | 889714000465 |

## Product Details

- **Active Ingredients:** Carbamide Peroxide
- **Brand:** Crest
- **Item Form:** Strip
- **Number of Items:** 1
- **Product Benefits:** Whitening

## Images

![3D Whitestrips Age Renew – Teeth Whitening Kit, 21 Treatments, Each with 1 Upper/1Lower, 42 Strips – Crest 3DWhite Teeth Whitening Strips - Image 1](https://m.media-amazon.com/images/I/61EkIleRAWL.jpg)

## Available Options

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

## Questions & Answers

**Q: What's the Percentage of peroxide?**
A: Our Supreme Flexfit Whitestrips contain 10% hydrogen peroxide.

**Q: The price keeps going up and down. Is there a reason why? I was ready to but, but price went up $9!**
A: You may have noticed that price changes happen constantly on Amazon. I used to think it had to do with stock on hand. I now think they are using an algorithm that does “dynamic pricing”, like concert tickets sellers use. Who knows what parameters they use. With Ticketmaster, the faster tickets are sold, the more the price goes up. Supply and demand principles. To Ticketmaster’s credit, at least they are transparent about their use of it, and even have link to an explanation of their use of it on their website.  When using Amazon, unless it is something I need right away, I usually save it to a list, adding a note with the date and the then-current price, and also put the item in my cart, then move it to the “save for later” list on the cart page. When you do this, every time you look at your cart, it will tell you which items on that list have had a price change, up or down, and the amount. I then wait for the price to go down.  A couple of years ago, I saved over $130 on a larger ticket item. That was definitely worth the wait. Also, if you are a Prime member, you must realize the free shipping isn’t really free. A little of the price is due to this, especially on cheaper items. It’s like buying a bottle of aspirin at a corner store cost more than at a drug store, which costs more than at a big box store. You pay for convenience.  Even though Amazon denies that it has implemented one the more insidious aspects of dynamic pricing: different customers seeing & being charged different prices for the exact same product, based upon the analysis of all sorts on data, collected by aggregation services who data-mine the internet for such information (thanks a lot, Facebook), even including psychological theories regarding shopping and buying behaviors.  Or just simply: the higher your income (which can be determined by credit bureau report/credit card companies—which, by the way, if you have a credit card, at some point you voluntarily gave them your income info, which they can and do share, for a fee), the higher the price that will be offered to you.  Studies show most people never even realize that this is happening, and the algorithms also determine your “price tolerance”, and adjusts the pricing based on what the program believes you might pay for an item. If you are not familiar with the concept and usage of “Dynamic Pricing”, do yourself a favor, look it up and educate yourself about it (from a legitimate, reputable & reliable news source, please).  It is a very interesting concept, and may even get you thinking about how much and what type of Federal regulation of the internet  is needed.

**Q: Is this as pictured or the ones with a 24 on the front which I won't order**
A: This is NOT as pictured, it has a 24 front and center — which I did not want either but realized too late to return!!

**Q: I want the top and bottom strip to be long which crest white strip should I get?**
A: For any of the Crest Whitestrips the bottom will be shorter than the top. We'd love to talk and find the right Whitestrips for you, so when you have some free time, please reach out to us at (800) 395-8423

-The Crest Team

## Customer Reviews

### ⭐⭐⭐⭐⭐ THE best crest whitestrips I've ever tried
*by J***Y on February 15, 2025*

These are without a doubt the most whitening/brightening whitestrips I've ever used. The strips are so uniform and the whitening ingredients are so well spread onto the strips it's crystal clear.I've been using crest whitestrips for 14-15 years now. I started all the way back before the non-slip was even invented and you'd have to just kinda bite down on your teeth to prevent them from sliding around. They've been VERY effective in the past, which is why I've continued to use them throughout the years, but this pack right here is the most effective one I've ever used. I'm only halfway done with the set but my teeth are OUTLANDISHLY white. I started getting compliments from coworkers my 3rd day in. I did some research after buying them because I wanted to know what made these different, and it turns out it has the highest hydrogen peroxide concentration from all other strips out there. Their other strips contain 3.5%, 8% etc, this one's supplying the highest concentration you can get. I will say, if you're new to whitestrips they work by oxidizing the surface of the tooth to remove the stains soaked into the teeth. It's enamal safe, but you'll notice sensitivity. By day 5 I had to go out and get some sensodyne . If you're having sensitivity issues, I recommend getting sensydne and when you go to brush your teeth, spit out the toothpaste, not rinse. When you go to bed, brush softly and spit out the toothpaste, go right to bed and the floride toothpaste will help stick to your teeth and stop that sensitivity.

### ⭐⭐⭐⭐⭐ They do a great job whitening my teeth at age 73
*by J***L on February 5, 2026*

Love these! They do work!

### ⭐⭐⭐⭐⭐ Flex Your Smile — Crest Whitestrips Bring the Dazzle
*by B***E on September 24, 2025*

Crest 3D Whitestrips Supreme Flexfit are like tiny gym memberships for your teeth—except instead of crunches, they deliver sparkle. With 42 strips (21 treatments), this kit is your ticket to a red carpet smile without the awkward dentist small talk. Why They’re a Bright Idea: Flexfit Technology: Stretches to fit your teeth like yoga pants for enamel—comfy, snug, and effective. Professional-Level Whitening: Same ingredient dentists use, minus the bill and the guilt trip about flossing. Noticeable Results: You’ll start seeing a difference before your group chat even notices your new haircut. Real-Life Perks: Easy to use—just peel, stick, and pretend you’re starring in a toothpaste commercial. Great for coffee lovers, wine enthusiasts, and anyone whose teeth have seen things. No messy trays, no weird lights—just strips that stay put and do the work. Final Verdict: Crest Supreme Flexfit Whitestrips are the glow-up your smile’s been waiting for. They’re strong, stretchy, and seriously effective—like a personal trainer for your teeth, but way less judgy.

## Frequently Bought Together

- Crest 3D Whitestrips, Supreme Flexfit, Teeth Whitening Strip Kit, 42 Strips (21 Treatments)
- Crest 3D White Luxe Whitestrip Teeth Whitening Kit, Glamorous White, 14 Treatments( Each with 1 Upper/ 1 Lower), 28 Strips
- Crest 3DWhitestrips Sensitive + LED Light Teeth Whitening Kit, 14 Treatments, Gently Removes 20 Years of Stains

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*Product available on Desertcart Cyprus*
*Store origin: CY*
*Last updated: 2026-02-15*