Product Reviews
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What are Crest Whitestrips?

Crest 3D Whitestrips are flexible, thin strips. They are coated with a whitening gel containing peroxide.

Crest strips fit your teeth' shape and keep the whitening gel in place against them using advanced seal technology to whiten the teeth for a brighter smile.

Crest 3D White Professional Effects Whitestrips 20 Treatments

Crest 3D Whitestrips Glamorous White

Crest Whitestrips ingredients include:

  • Water
  • Glycerin
  • Hydrogen peroxide
  • Polyvinylpyrrolidone (PVP)
  • Carbomer 956
  • Sodium hydroxide
  • Sodium saccharin
  • PEG-8 
  • Acrylates copolymer
  • Pyrophosphate (in Crest 3D White Whitestrips Stain Shield) 
  • Polyethylene (the textured strip)

To determine if Crest Whitestrips are a good option for you, you should learn whether you are dealing with enamel or dentin discoloration. Enamel becomes discolored from staining. For example, if you drink a lot of red wine.

Dentin is typically considered the ‘inside’ of your teeth. Dentin becomes discolored from aging, trauma, poor nutrition, or smoking. Crest Whitestrips feature peroxide to whiten the deep dentin layer of your teeth.

Crest Whitestrips may reduce the appearance of teeth stains. However, grey teeth rather than yellow are less likely to whiten noticeably using peroxide-based whitening systems like Crest Whitestrips.

Avoid using Crest Whitestrips immediately before or after dental work, like dental fillings or dentures. Dental whitening strips will not whiten veneers, bonding, or anything else aside from your natural teeth. You should also have clean teeth prior to whitening so the gel distributes equally. 


Crest Whitestrips whiten teeth by removing surface stains and set-in stains deep within tooth enamel.

Types of Crest Whitestrips

There are various types of Crest Whitestrips, including:

  • Crest 3D White Whitestrips
  • Crest 3D White Whitestrips Sensitive
  • Crest 3D White Whitestrips with Light
  • Crest 3D Whitestrips 1 Hour Express
  • Crest Noticeably White Whitestrips
  • Crest 3D No Slip Whitestrips
  • Crest 3D Whitestrips Arctic Mint
  • Crest 3D White Whitestrips Professional Effects
  • Crest 3D White Whitestrips Gentle Routine

How Do Crest Whitestrips Work?

It is best if you do not brush your teeth with a toothbrush and toothpaste before applying teeth whitening strips. 

To get the Crest Whitestrips to work, open the packaging pouch and take out the strip. Remove the strips from the backing liner and fit with the gum line. Press gently for a good hold.

Fold the rest of the strip behind the teeth to fit it into place. Wear the strips for the required amount of time as stated on the packaging, then remove and discard. 

You can skip or miss a few treatments without affecting your whitening benefits. Do not try to use a strip more than once as it will not deliver any whitening advantages. While there may be gel left on the strip when you remove it, most of the hydrogen peroxide will have depleted. 


Crest Whitestrips are placed on your teeth for up to one hour. The strips will not slip or fall off during the whitening process.

Are Crest Whitestrips Safe?

Crest Whitestrips are safe for occasional use. But, if you do not use them correctly or use them too frequently, these whitening treatments may cause damage to your gums or teeth.

However, UV light, included in some teeth whitening kits from Crest, may cause severe tooth sensitivity. This sensitivity may fade within a few days to one week. UV lights do not seem to increase the whitening effect of peroxide further than a week or two.

UV lights with peroxide may adversely affect the pulp of your tooth. This could potentially lead to painful or uncomfortable toothaches or the need for a root canal. 

The American Dental Association (ADA Council) has approved Crest 3D White Glamorous White Whitestrips as ‘safe and effective’ for home use.

Possible Side Effects of Crest Whitestrips

The side effects of Crest Whitestrips are usually limited to tooth sensitivity and gum irritation. Another issue with Crest Whitestrips is that they may leave yellow or greyish spots or dots because they do not always stick to teeth' surfaces correctly. However, this is more an aesthetic concern than a safety issue.

One of the best methods of protecting yourself from potential teeth whitening side effects is to select quality products. Choose whitening strips with seals that fit closely to the teeth.

Always follow instructions on the products to lessen your risk of teeth whitening side effects like tooth sensitivity and gum irritation.


Tooth sensitivity and gum irritation are the most common side effects of whitening strips. However, Crest also sells whitening strips specifically designed to reduce sensitivity.

How to Use Crest Whitestrips: Step-By-Step Instructions

To use Crest Whitestrips and reduce any side effects, it is essential to follow the packaging instructions.

Do not brush your teeth with toothpaste before or after using the white strips. Brushing your teeth before using white strips can heighten tooth sensitivity. Brushing afterward risks pushing the abrasive chemicals into the enamel of the teeth.

  1. Remove an upper and lower strip from their packaging.
  2. Cut each strip to the precise height for your teeth.
  3. Remove the plastic covering the adhesive layer.
  4. Carefully place each strip on your teeth with the gel side sticking onto them. Try not to let the strips touch the gums.
  5. Let the strips sit on your teeth for the amount of time listed on the packaging. This is usually five minutes or fewer.
  6. Remove the white strips.
  7. Rinse and wash your mouth with water or coconut oil
  8. Do not brush your teeth for at least two hours.
  9. Repeat the treatment up to two times a day. Do not exceed the number of days suggested on the packaging.

For the quickest results, you can purchase Crest 3D Whitestrips. These are the most powerful Crest Whitestrips. They can stay on the teeth for 30 minutes and can whiten teeth in one use. Some whitening kits come with UV lights to ‘speed up’ the process.

Most whitening strips are simple to use, so following the instructions should be fairly easy. No matter what type of Crest Whitestrips you use, following the instructions properly will help you have whiter teeth and ensure you are properly looking after your teeth. 


Many people have busy lives that do not leave much time for complicated whitening treatments. Fortunately, Crest Whitestrips are affordable and easy to use. They help you achieve vivid, white teeth from the comfort of home.

How Often Can You Use Crest Whitestrips?

Always read the packaging of how many times a day you should wear Crest Whitestrips. This will differ by product and should be clearly written in the teeth whitening instructions. Some Whitestrips will require one application, while others should be worn twice a day.

When it comes to timings, you should wear your home whitening strips from five minutes to 45 minutes, depending on the product's strength. Read the instructions of your product carefully and follow the directions for the best results.

This is likely to range from five minutes to one hour, depending on the product's strength. Again, always follow the directions for the best results.

When it comes to the length of the regimen, it depends on the product. Some whitening treatments last a week, while others are up to a month.


Read the instructions to determine how often you should use Crest Whitestrips, as this varies by type.

How to Keep Your Teeth White After Whitening

There are various ways to maintain your newly white teeth after treatment.

The first is to try and sip drinks that are likely to stain your teeth. If you drink sodas like cola, sip them through a straw to reduce the drink's contact with your white teeth.

If you drink beverages like coffee, tea, red wine, or cola, always rinse your mouth after consumption as soon as possible to reduce the risk of stains. The same goes for foods that are likely to stain your teeth.

Be sure to brush your teeth with whitening toothpaste once or twice a week while using products to whiten the teeth. Use standard toothpaste for daily use. Using mouthwash daily can also help.

Daily flossing will also help keep white teeth in excellent condition. Make sure to practice a complete oral care routine, including twice-daily tooth brushing and daily flossing, as this is essential no matter what teeth whitening products you choose.

For the whitest teeth possible, prevention is essential. To stop teeth from aging prematurely and yellowing, practice good oral care. You should always drink water throughout the day and limit staining foods and beverages such as wine.

Also, make sure to schedule regular dental care and teeth cleanings.


Optimal oral hygiene is essential to keep your teeth white. Also, limit intake of staining foods/drinks and don't smoke.

How Much Do Crest Whitestrips Cost?

Whitening Strips typically cost around $70 for a kit, but prices vary depending on the type of strips. Consider how much in-office professional whitening costs if you are concerned about the cost of teeth whitening strips.

Some whitening strips contain ingredients like the products used by dentists and remove stains below the tooth's enamel. Crest 3D Whitestrips Professional Effects can remove up to 14 years of teeth stains and offers expert-level whitening at around $69.99 for a set of 20 strips.

Crest 3D White Whitestrips Gentle Routine offers more subtle teeth whitening at approximately $44.99 for a set of 28 strips. They have the same ingredients used by dentists for in-office teeth bleaching. However, the concentration is lower, so the product is less likely to irritate sensitive teeth.


Crest Whitestrips cost between $30 and $70.

Where to Buy Crest Whitestrips 

The best place to buy Crest Whitestrips is Amazon, and there are plenty of different varieties available. You can also purchase Crest Whitestrips from Walgreens, Walmart, Target, and similar stores.

Crest 3D White Professional Effects Whitestrips 20 Treatments

Crest 3D Whitestrips Glamorous White

Best Overall

The Crest 3D Professional Effects Whitestrips Kit contains 16 full whitening treatments. This includes 14 regular whitening treatments (one upper and one lower strip) and two one-hour express treatments. The one-hour express strips reveal same-day results for a visibly whiter smile.

Crest 3D White Whitestrips have the American Dental Association (ADA) Seal of Acceptance, which means they are safe and effective when used correctly.

Cost: $

Crest 3D Whitestrips Sensitive Teeth Whitening Kit

Crest 3D Whitestrips Sensitive

Best for Sensitive Teeth

These Whitestrips were developed to provide a comfortable at-home whitening experience for people who have tooth sensitivity but still want to brighten their pearly whites. These enamel-safe strips get applied for 30 minutes daily.

Cost: $

Last updated on April 26, 2022
6 Sources Cited
Last updated on April 26, 2022
All NewMouth content is medically reviewed and fact-checked by a licensed dentist or orthodontist to ensure the information is factual, current, and relevant.

We have strict sourcing guidelines and only cite from current scientific research, such as scholarly articles, dentistry textbooks, government agencies, and medical journals. This also includes information provided by the American Dental Association (ADA), the American Association of Orthodontics (AAO), and the American Academy of Pediatrics (AAP).
  1. Swift, Edward J Jr et al. “Effects of duration of whitening strip treatment on tooth color: a randomized, placebo-controlled clinical trial.” Journal of dentistry vol. 37 Suppl 1 : e51-6, 
  2. Takesh, Thair et al. “Evaluating the Whitening and Microstructural Effects of a Novel Whitening Strip on Porcelain and Composite Dental Materials.” Dentistry (Sunnyvale, Calif.) vol. 7,8 : 448, 
  3. How do Crest 3D White Whitestrips work?, Crest, 
  4. What Are the Side Effects of Teeth Whitening?, Crest, 
  5. Crest Whitestrips Instructions: Safe & Easy Teeth Whitening, Crest, 
  6. How Much Does Teeth Whitening Cost?, Crest,
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