• White in Minutes 35% Carbamide Peroxide Teeth Whitening Gel refill featuring a 10mL whitening gel syringe and retail package on a light gray background. Prime Whitening Formula, vegan, cruelty-free, made in USA, designed for custom whitening trays.
  • Before and after teeth whitening results on a woman showing visibly brighter, whiter teeth after use, with headline “Noticeably Brighter. Undeniably Confident.” and real results disclaimer.
  • Choose the Perfect Formula infographic showing four teeth whitening gel strengths: 16% sensitive, 22% balanced, 35% original, and 44% maximal, with benefits for sensitivity levels and whitening results.
  • White in Minutes whitening gel and LED whitening tray instructions infographic showing four steps: clean and dry teeth, apply a thin strip of whitening gel inside the front of the tray, insert the LED tray and wear for 20 to 60 minutes, then rinse with water, clean the tray and store it for the next use.
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35% Carbamide Peroxide Teeth Whitening Gel

35% Carbamide Peroxide Teeth Whitening Gel

$19.00 USD
$19.00 USD
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Teeth whitening gel with strong whitening power

White in Minutes® 35% Carbamide Peroxide Teeth Whitening Gel is our most popular carbamide peroxide formula, designed for experienced whitening users who want stronger whitening performance with the flexibility of tray-based whitening.

This USA-made gel is well suited for regular whitening, moderate to heavy staining, maintenance, and professional take-home use.

Each 10 mL syringe provides up to 10 whitening applications. Choose a single syringe for personal use or select larger pack sizes for professional, wholesale, or higher-volume needs.

Best uses for 35% carbamide peroxide whitening gel

35% carbamide peroxide is a strong, versatile option for users who want more whitening power than lower-strength formulas without moving to the highest concentration.

It is especially well suited for:

  • Experienced whitening users
  • Moderate to heavy staining
  • Coffee, tea, red wine, soda, and tobacco stains
  • Faster whitening than lower-strength formulas
  • Whitening maintenance
  • Professional take-home whitening
  • Users stepping up from 16% or 22% carbamide peroxide

If you are whitening for the first time or are especially sensitivity-conscious, a lower-strength formula such as 16% or 22% carbamide peroxide may be a better starting point.

Why choose 35% carbamide peroxide?

The 35% formula is designed to help lift common stains caused by coffee, tea, red wine, soda, tobacco, and everyday discoloration while providing a stronger whitening option for users who are already comfortable with tray whitening.

It is a good fit for users who want:

  • Stronger whitening than lower-strength carbamide peroxide formulas
  • Support for moderate to heavy staining
  • A versatile option for regular whitening and maintenance
  • A formula suitable for both personal and professional use
  • A step up from 16% or 22% carbamide peroxide

For many experienced users, 35% carbamide peroxide offers a practical balance of whitening strength, flexibility, and treatment control.

How 35% carbamide peroxide works

Carbamide peroxide gradually breaks down and releases hydrogen peroxide during the whitening session. This slower release allows the whitening action to continue over time, which makes carbamide peroxide well suited for tray-based whitening.

As the gel works, it helps break down discoloration within the tooth surface rather than physically scrubbing stains away.

The 35% formula provides a stronger option than 16% or 22% carbamide peroxide while remaining below the intensity of 44%, making it a useful choice for experienced users who want strong whitening without selecting the highest concentration.

Product Specifications

Volume: 10 mL

Formula: Carbamide Peroxide

Concentration: 35%

Flavor: Peppermint

Shelf life: 12 months

Refrigeration required: No

Tray included: No

Country of manufacture: USA

White in Minutes Gel Features

  • Fluoride-Free
  • Vegan
  • Kosher
  • Gluten-Free
  • Cruelty-Free
  • Made in the USA

CP teeth whitening gel has a 12-month shelf life and can be kept in a cool, dark place.

Choose Your Pack Size

Start with a single 10 mL syringe or choose 5, 10, 50, or 100 packs for professional, wholesale, or high-volume use. Larger pack sizes offer a lower cost per syringe, with volume pricing automatically applied.

5-Pack
Ideal for smaller professional practices or occasional restocking.

10-Pack
A practical option for regular professional use.

50-Pack
Designed for established businesses with higher treatment volume.

100-Pack
Best suited for high-volume operations and bulk purchasing.

How To Use

  1. Apply a thin strip of whitening gel along the inner front surface of a whitening tray. Less is more!
  2. Place the tray over your teeth and gently press it into position. Start with a 15-minute session and increase wear time as tolerated, up to 60 minutes.
  3. When whitening session is complete, remove tray and swish with water. Clean excess gel from tray and store gel in pouch for next use.

Teeth whitening tray is NOT included with this product. Shop for complete home whitening kits HERE, and for mouth trays HERE. 

Teeth Whitening Gel Ingredients

Propylene Glycol, Glycerine, Carbamide Peroxide, d-Limonen, Peppermint.

View full details

Compare Carbamide Peroxide Strengths

Choose the concentration that best fits your whitening routine and sensitivity preferences.

Swipe to compare →

Strength Best Suited For Wear Time Sensitivity Potential
16% CP Sensitivity-conscious users and those who prefer a lower-strength formula Up to 60 minutes Lowest sensitivity potential in the range
22% CP Users wanting a balanced middle-strength formula Up to 60 minutes Moderate sensitivity potential
35% CP Experienced users wanting a stronger tray-whitening formula Start at 15 minutes; increase as tolerated up to 60 minutes Higher sensitivity potential
44% CP Experienced users seeking the highest-strength CP option Start at 15 minutes; increase as tolerated up to 60 minutes Highest sensitivity potential

Individual tolerance varies. Customers with a history of tooth or gum sensitivity may prefer a lower concentration.

Expert Tips

A small drop per tooth is usually enough. More gel won't whiten faster and may irritate your gums.

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Many users whiten for 30 to 60 minutes, but shorter sessions can still deliver great results.

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Take breaks if needed. If you experience temporary sensitivity, skip a day or use a desensitizing or remineralizing gel between treatments.

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Watch what you eat. Limit coffee, tea, red wine, and other dark-colored foods and drinks for 24 to 48 hours after whitening.

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Keeping unused syringes in a cool, dark place helps maintain the gel's freshness and whitening performance.

FAQ's

Is 35% carbamide peroxide considered professional strength?

Yes. 35% carbamide peroxide is widely used by whitening professionals, dental offices, and experienced at-home users because it offers strong whitening performance while remaining suitable for tray whitening systems.

How long should I wear 35% carbamide peroxide whitening gel?

Wear time depends on your whitening routine and comfort level. Many users wear 35% carbamide peroxide for 30 to 60 minutes, while others prefer shorter sessions. Always discontinue use if significant irritation occurs.

Who should choose 35% carbamide peroxide?

35% is ideal for experienced whitening users, people with moderate to heavy staining, coffee and tea drinkers, smokers, and those looking for faster whitening than lower-strength formulas.

How much whitening gel should I place in my tray?

Only a small bead of whitening gel is needed in each tooth compartment of your whitening tray. Using more gel will not whiten your teeth faster and may increase the amount of gel that comes into contact with your gums.

Is 35% carbamide peroxide stronger than 22%?

Yes. A 35% carbamide peroxide gel releases more whitening oxygen than a 22% formula, generally producing faster stain removal. However, stronger formulas may also increase the likelihood of temporary tooth sensitivity.

Does 35% carbamide peroxide expire?

Yes. Like all peroxide-based whitening gels, carbamide peroxide gradually loses effectiveness over time. Store the gel according to the package instructions and use it before the expiration date for best performance.

Can I use 35% carbamide peroxide with any whitening tray?

Yes. The gel is compatible with most custom trays, boil-and-bite trays, universal whitening trays, and many retainer-style whitening systems.

Will 35% carbamide peroxide whiten crowns or veneers?

No. Whitening gel is intended for natural tooth enamel and generally does not change the color of crowns, veneers, fillings, or other dental restorations.

  • 5 stars: 6 (50%)
  • 4 stars: 5 (42%)
  • 3 stars: 0 (0%)
  • 2 stars: 1 (8%)
  • 1 star: 0 (0%)
G
Genoveve E.
5 stars. Period.

I have been getting supplies from this company for over 10 years. Needless to say I don’t go anywhere else.

R
Ruba T.
35% Carbamide Peroxide Teeth Whitening Gel

Good quality

C
Cindy W.
Burns!

I've used whitening gel for years but this was the first one I had start burning immediately. I left in on for 20 minutes hoping the burning would stop and by the time my timer went off, I had forgotten about it. My gums are white in some places, I mean really white, like blisters. They are sore today. The package says your gums might be sore up to 24 hours. I don't think this is for me. I can see that my teeth are whiter but not sure that the burning gums are healthy.

Hi Cindy,
We are sorry to hear about your experience using this 35% CP gel strength. It may be too strong for you. The whitening of your gums is called skin blanching and will subside, typically overnight. Some poeple find that whitening formuals are too strong for their tooth senstivity level, while other may experience that the gel is too strong for their skin sensitvity level. A team member will reach out to you via email about trying a lower strength gel that may work better.

V
Vlad
Like the dentist... but cheaper

There is no difference between this and what I got from my dentist. I like it a lot.

J
Jaclyn
Best gel I have found

Thsi stuff is legit love the product, using it on all my clients now instead of my other supplier wish the shipping was free but worth every penny.

G
GFW
Good product

The shipping was fast and it made my teeth a lot whiter I will continue using this treatment.

N
NDK
Very Good

I’ve ordered my gels from this store for years and although delivery was very slow in the past that is not the case now! Delivery has been very fast and the gels are great and at a great price as well. Quit buying from my dentist since I found The Whitening Store!

A
Ashley
better than strips

I have been using the gel with my Invisalign and its working great!

C
Charlene
More than I would expect

I thought the tube would be the small kind I got from my dentist but its enough gel to last me a while works good

P
P.K.
fast working

stronger than the gel my dentists sells and $20 less expensive. shipped really fast too.

J
Joey G.
this is strong- wow it works so well

I have my dentist whiten my teeth a long time ago and it works for sure but I always thought it could get better. My friend recommended the whitening store.com and I knew I didn't have sensitive teeth (their info page gives some guidance on what to buy). Wow this stuff is strong and whitens so well. I only had to leave it on my teeth for 30 minutes - I did it a couple days in a row and after 2 days I noticed a huge result. Just keep in mind that sometimes your gums may get sensitive - one of the representatives told me to purchase vitamin E swabs off their site so I did and put those on my gums and it helped a lot. I love this gel and I ended up buying Christmas presents for my friends from them as well.

P
Phil
Woah I'm amazed.

I already had Invisalign trays from my dentists and bought this as a refill to whiten for my wedding. I can't believe how quickly this gel worked. The paperwork has simple instructions on how to use and I was very careful to use just the right amount as suggested. Very easy and didn't take more than 5 times to show super bright results. Thank you TheWhiteningStore.com

Shop Small. Smile Big.

Since 2012, we've proudly supplied high quality teeth whitening products to both consumers and dental professionals from our woman-owned, independently run small business. Our whitening gels are manufactured in FDA-certified facilities in the USA using carefully selected ingredients and are produced in small batches to help ensure freshness and consistency.

We believe beauty should be ethical, inclusive, and empowering. That's why we partner with diverse and responsible suppliers, never sell through big-box retailers, and remain committed to transparent business practices, equality, and exceptional customer care. Every order supports an independent business built on integrity, expertise, and the belief that your smile deserves genuine care from real people, not corporations.

Read More About Us
Smiling woman in a bright, modern bathroom featured in a Teeth Whitening Gel Strength Guide, helping readers choose the best whitening gel formula for their smile.

Choose the Right Whitening Gel Strength

Compare carbamide peroxide strengths, sensitivity considerations, wear times, and whitening goals in our complete gel strength guide.

Read The Guide

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