• White in Minutes 16% Carbamide Peroxide Teeth Whitening Gel refill featuring a 10mL whitening gel syringe and retail package on a light gray background. Low Sensitivity 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.
  • How to use teeth whitening gel and LED tray infographic showing four steps: prep, apply gel, insert tray, and rinse on a soft blue background.
  • 16% Carbamide Peroxide Teeth Whitening Gel 10ml - TheWhiteningStore.com
1 5

16% Carbamide Peroxide Teeth Whitening Gel Refill

16% Carbamide Peroxide Teeth Whitening Gel Refill

$18.00 USD
$18.00 USD
Sale Sold out
Shipping calculated at checkout.
Select Pack Size

Professional Teeth Whitening Gel For Sensitive Teeth & First-Time Whitening

Looking for a professional teeth whitening gel that's gentle enough for sensitive teeth? White in Minutes® 16% Carbamide Peroxide Teeth Whitening Gel is designed for comfortable, gradual whitening without sacrificing visible results.

As our gentlest carbamide peroxide whitening gel, the 16% formula is a popular choice for first-time whitening users, people prone to tooth sensitivity, and anyone who prefers a slower, more controlled whitening process.

Each 10 mL syringe provides approximately 6 to 8 whitening applications and is compatible with most whitening trays, including custom dental trays, universal trays, and many LED whitening systems.

Whitening Goal 16% CP ✅ Recommended 22% CP 35% CP 44% CP
First-time whitening ⭐⭐⭐⭐⭐ ⭐⭐⭐⭐ ⭐⭐ ⭐
Sensitive teeth ⭐⭐⭐⭐⭐ ⭐⭐⭐⭐ ⭐⭐ ⭐
Overnight whitening trays ⭐⭐⭐⭐⭐ ⭐⭐⭐⭐ ⭐⭐⭐ ⭐⭐
Whitening maintenance ⭐⭐⭐⭐⭐ ⭐⭐⭐⭐ ⭐⭐⭐ ⭐⭐
Faster whitening ⭐⭐⭐ ⭐⭐⭐⭐ ⭐⭐⭐⭐⭐ ⭐⭐⭐⭐⭐
Experienced whitening users ⭐⭐⭐ ⭐⭐⭐⭐ ⭐⭐⭐⭐⭐ ⭐⭐⭐⭐⭐

Why Choose 16% Carbamide Peroxide Teeth Whitening Gel?

Not every smile needs the strongest whitening gel available.

Many people achieve excellent results using a lower concentration that prioritizes comfort while gradually removing everyday stains.

White in Minutes 16% Carbamide Peroxide Gel is designed to:

  • Whiten teeth with a sensitivity-conscious formula
  • Help remove stains from coffee, tea, wine, soda, and smoking
  • Support comfortable longer whitening sessions
  • Reduce the likelihood of whitening discomfort compared with higher strengths
  • Work with most professional and at-home whitening trays
  • Deliver professional-quality whitening from the comfort of home

Whether you're whitening for the first time or maintaining an already bright smile, 16% carbamide peroxide offers an excellent balance between effectiveness and comfort.

Who Should Choose 16% Carbamide Peroxide?

This formula is especially popular among customers who:

  • Have naturally sensitive teeth
  • Have experienced sensitivity with stronger whitening gels
  • Are whitening for the first time
  • Prefer gradual whitening over rapid whitening
  • Use overnight or extended wear whitening trays
  • Want a comfortable maintenance gel after achieving their ideal shade
  • Want professional-strength whitening with less intensity

Many whitening professionals also recommend starting new clients with lower-strength carbamide peroxide before progressing to stronger formulas if needed.

Professional Whitening Gel Designed For Whitening Trays

Our thick whitening gel stays where you place it, making application cleaner and helping provide even coverage throughout your whitening tray.

Each syringe features a precision dispensing tip that helps minimize waste while making it easy to apply the correct amount of gel.

Compatible with:

  • Custom dental trays
  • Universal whitening trays
  • Boil-and-bite trays
  • Professional chairside tray systems
  • Many LED whitening lights

Removes Everyday Surface Stains

Teeth naturally collect stains over time from everyday habits.

16% carbamide peroxide helps lift discoloration caused by:

  • Coffee
  • Tea
  • Red wine
  • Soda
  • Tobacco
  • Everyday foods
  • Natural aging

With consistent use, many users notice a cleaner, brighter smile while enjoying a more comfortable whitening experience.

Why Carbamide Peroxide Is Ideal For Sensitive Whitening

Carbamide peroxide has been trusted in professional whitening for decades because it releases whitening oxygen gradually throughout the treatment session.

That slower release makes it especially well suited for whitening trays that are worn for longer periods, allowing the gel to remain active while providing a more comfortable whitening experience than many higher-concentration formulas.

For people with sensitive teeth, this controlled whitening process often makes 16% carbamide peroxide an excellent starting point.

Whitening Gel For Trays

White in Minutes 16% Carbamide Peroxide Whitening Gel is specifically designed for whitening trays and is compatible with most tray systems currently available.

Whether you're replacing whitening gel from an older kit, maintaining previous whitening results, or beginning your first whitening routine, this USA-made formula delivers professional-quality whitening with convenient at-home application.

Buy In Bulk & Save

Select your preferred pack size and enjoy automatic volume discounts.

5-Pack
$15.00 per unit

10-Pack
$12.00 per unit

50-Pack
$10.00 per unit

100-Pack
$8.00 per unit

Specifications

  • Volume: 10 mL
  • Formula: Carbamide Peroxide
  • Concentration: 16%
  • 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.

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 tray into mouth, press gently to teeth, recline and relax for 20-60 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

Expert Tips

If you're whitening for the first time, begin with shorter sessions and gradually increase wear time as your teeth adjust.

Whitening works best on clean teeth. Brush before each treatment to remove plaque and surface debris.

Avoid overfilling your whitening trays. A thin bead of gel is typically all that's needed for even coverage.

If you experience temporary sensitivity, take a short break between treatments or use a desensitizing gel before your next session.

Consistency produces better long-term results than using a stronger gel less frequently.

FAQ's

Is 16% carbamide peroxide good for sensitive teeth?

Yes. 16% carbamide peroxide is one of the most popular whitening strengths for people with sensitive teeth because it provides gradual whitening while helping minimize the discomfort that some people experience with stronger formulas.

Is 16% carbamide peroxide strong enough to whiten teeth?

Yes. Although it whitens more gradually than higher concentrations, 16% carbamide peroxide is capable of producing noticeable whitening results when used consistently.

Who should choose 16% carbamide peroxide?

This formula is ideal for first-time whitening users, people with sensitive teeth, those maintaining previous whitening results, and anyone who prefers a gentler whitening routine.

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.

Does 16% carbamide peroxide work with LED whitening lights?

Yes. This whitening gel is compatible with most LED whitening lights and whitening tray systems.

How many whitening treatments are included in one syringe?

Each 10 mL syringe provides approximately 6 to 8 whitening applications, although the exact number will vary based on the size of your whitening trays and the amount of gel used during each treatment.

Can I use this gel with my existing whitening trays?

Yes. It is compatible with most custom dental trays, universal whitening trays, and many boil-and-bite whitening trays.

What's the difference between 16% and 35% carbamide peroxide?

The primary difference is whitening speed and intensity. While 35% carbamide peroxide generally produces faster results, 16% offers a gentler whitening experience that many people with sensitive teeth find more comfortable.

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