Best teeth whitening strip

Oral Care

Each brand of whitening strips uses its own application technique and whitening ingredient, so be sure to read the instructions and never leave the strips on longer than stated.

BestReviews is reader-supported and may earn an affiliate commission. Details.

Which teeth whitening strips are best?

Yellowing teeth is natural and happens as we age. Teeth can also become discolored due to the consumption of certain foods and drinks, but thanks to at-home whitening strips, anyone can whiten their teeth without stepping foot in a dental office. 

With the abundance of teeth whitening strips on the market, you’re sure to find one that suits your lifestyle. However, if you’re looking for a short daily treatment with near-professional results, Crest 3D White Professional Effects Teeth Whitening Strips are an ideal choice.

What to know before you buy teeth whitening strips

There are many ways to whiten your teeth at home, including teeth whitening toothpaste and mouthwash. If you choose teeth whitening strips, here are some things to consider.

How do teeth whitening strips work?

All teeth whitening strips use whitening ingredients like carbamide peroxide or hydrogen peroxide to reach below the enamel surface and remove teeth stains. These ingredients should remove superficial teeth stains without damaging your tooth’s enamel. 

The flexible polyethylene strips are then used to keep the whitening gel in place against your teeth without washing off. A package usually comes with two strips — one for the top and one for the bottom teeth. 

How long does it take for whitening strips to work?

The length of time it takes for whitening strips to work depends on the amount of stains and the type of whitening strip. Some strips need to be worn for 30 minutes per day, while others can be used overnight. A kit usually includes treatments anywhere from 5 to 14 days while promising to make your teeth up to 18 shades whiter at the end of a treatment. However, deep-set stains may require more treatment than other stains.

What causes my teeth to become yellow?

Age is one factor that causes teeth to turn yellow. As we age, the enamel on our teeth gets thinner and wears away due to constant chewing and exposure to acidic food and drinks. Common food and beverages that stain teeth include coffee, tea, wine, soda, tomato sauce, curry and many types of fruit. Nicotine from smoking can also cause significant teeth stains. 

What to look for in a quality teeth whitening strip

Strength

Whitening strips come in all different strengths. Lower strength whitening strips are designed to touch up a dull smile, while high-strength whitening strips can remove deep-set stains and whiten teeth several shades. Advanced level whitening strips can be harsh on teeth, so be sure to pick a level suitable to your needs. 

Lifestyle

Whitening strips are not one size fits all, so you should pick one that’s suitable to your lifestyle. For example, some strips require 2 hours of use every single day. If you don’t think you have hours a day to set aside for teeth whitening, opt for overnight teeth whitening strips or those that only require 30 minutes. 

Tooth sensitivity

Because teeth whitening strips are reaching below the enamel to fade deep stains, many people experience sensitivity. If you already have sensitive teeth or gums, you might consider starting with a lower strength whitening strip and working up if you don’t experience additional pain or sensitivity.

How much you can expect to spend on teeth whitening strips

Teeth whitening strips can cost between $10-$100, depending on the number of treatments per box, the strength of treatment and the brand of whitening strips.

Teeth whitening strips FAQ

Can I use whitening strips if I have a cavity?

A. Per their website, Crest does not recommend using whitening strips before consulting your dentist if you have a cavity or require dental work. 

Should I brush my teeth directly after using whitening strips?

A. You should be able to brush your teeth and floss after using whitening strips. However, be sure to read the instructions on your whitening strips to ensure brushing will not interfere with the whitening treatment.

What ARE the best teeth whitening strips to buy?

Top teeth whitening strips

Crest 3D White Professional Effects Teeth Whitening Strips Kit

Crest 3D White Professional Effects Teeth Whitening Strips Kit

What you need to know: Because these whitening strips use the same whitening ingredient as dentists, they provide similar results for a fraction of the price of professional treatments.

What you’ll love: In just 20 days, Crest claims these strips will get your teeth 18 levels whiter by using them only 30 minutes per day. They’re also enamel-safe since they use the same enamel-safe teeth whitening ingredient as dentists.

What you should consider: Some users can experience increased tooth sensitivity and pain after the first few uses.

Where to buy: Sold by Amazon and Ulta

Top teeth whitening strips for the money

Crest 3D White Vivid Plus Teeth Whitening Kit

Crest 3D White Vivid Plus Teeth Whitening Kit

What you need to know: These affordable whitening strips are a great alternative to premium Crest strips while using the same ingredients. 

What you’ll love: All Crest whitening strips use enamel-safe teeth whitening ingredients. These strips have a no-slip grip, so you can talk and even drink while whitening your teeth. This kit also includes two 1-hour express strips.

What you should consider: These whitening strips are powerful and might not be ideal for those with sensitive teeth or gums.

Where to buy: Sold by Amazon

Worth checking out

Lumist Advanced Teeth Whitening Strips

 

Lumist Advanced Teeth Whitening Strips

What you need to know: These whitening strips work quickly, whitening teeth up to five shades in just 5 days.

What you’ll love: After 5-10 minutes, these strips become invisible, so you can eat, drink, talk and exercise while whitening your teeth. Lumist is specially formulated with 20% Carbamide Peroxide to be gentler on the enamel.

What you should consider: While these strips work quickly, they need to be worn for several hours every day.

Where to buy: Sold by Amazon

Sign up here to receive the BestReviews weekly newsletter for useful advice on new products and noteworthy deals.

Bre Richey writes for BestReviews. BestReviews has helped millions of consumers simplify their purchasing decisions, saving them time and money.

Copyright 2021 BestReviews, a Nexstar company. All rights reserved.