Do you deliver the product with a cold pack? I understand the solution should keep cold?

Hello, the expertwhitening 16%CP is Carbamide peroxide (which is a stabilized form of hydrogen peroxide) that does not require a cold pack for shipping. Also, it does not require refrigeration at home. It can be stored at room temperature away from direct heat.

I already have the teeth trays that I got from my dentist, is this product safe for my trays for whitening?

Yes, this gel is specifically for tray whitening. This is the most gentle formula gel with amazing whitening results. You can wear this gel in your trays for one hour or overnight. Whiten for 7-10 days in succession (once a day) until you achieve your desired shafde of white - then only whiten (or touch up) as needed.

Is this product ok to use after brushing my teeth daily at night?

Yes. It works perfectly after you've brushed your teeth. You can wear it in your trays for 60 minutes or overnight. Whether you would wear the gel EVERY day without taking a break is not necessary. Your teeth will reach a certain shade of white and not whiten any more (the natural whitest base color of your natural teeth). After that you whiten (or touch up) as needed.

How long should I use this product on my teeth trays for?

I found the answer below on the web, and would add that you can keep increasing the time by 15 minutes if you don't experience much sensitivity:Wear gel in trays over teeth for recommended time (determined by the strength gel that you are using). 16% (60-minutes) / 22% (45-minutes) / 35% (30- minutes) and 44% (15-minutes).The website is http://expertwhitening.com/pages/directions-for-use

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16% Carbamide Peroxide Teeth Whitening Gel – Sensitive Teeth Formula – Made in USA – Professional Refill Syringes (4 x 3cc) for Use with Whitening Trays

16% Carbamide Peroxide Teeth Whitening Gel – Sensitive Teeth Formula – Made in USA – Professional Refill Syringes (4 x 3cc) for Use with Whitening Trays

Product ID: 21961082

Details

Active Ingredients
glycerin
Brand
Expertwhite
Item Form
Gel
Number of Items
1
Product Benefits
Whitening

💉4 precision 3cc syringes for mess-free dosing

🦷Enamel-safe near-neutral pH formula

⚖️16% Carbamide Peroxide - gentle yet effective

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C$4520

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In stock

Sold byAmazon NicaraguaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

✨ Brighten Your Smile, Not Your Sensitivity! 🦷

MADE IN THE USA WITH CARE - Crafted under strict quality standards to protect enamel while lifting stains effectively.
MINTY FRESH CONFIDENCE BOOST - Subtle mint flavor leaves your mouth feeling fresh while your teeth get visibly whiter.
PROFESSIONAL WHITENING AT HOME - Dentist-grade formula delivers gradual, consistent brightening with every use—your smile’s new best-kept secret.
GENTLE POWER FOR SENSITIVE SMILES - 16% carbamide peroxide designed to whiten without discomfort, perfect for sensitive teeth and first-timers.
PRECISION APPLICATION ZERO WASTE - Four easy-to-use syringes ensure perfect dosing—no mess, no guesswork, just flawless coverage.

Expertwhite’s 16% Carbamide Peroxide Teeth Whitening Gel offers a professional-strength, enamel-safe whitening experience tailored for sensitive teeth. Made in the USA, this near-neutral pH formula gently lifts stains with minimal sensitivity. Packaged in four precision 3cc syringes, it ensures easy, mess-free application with custom or universal trays—perfect for overnight or daily use to restore your coffee-stained smile with confidence.

Specifications

ASIN	B00K1LERTS
Active Ingredients	glycerin
Age Range Description	Adult
Best Sellers Rank	#374,254 in Health & Household ( See Top 100 in Health & Household ) #233 in Teeth Whitening Gels
Brand	Expertwhite
Brand Name	Expertwhite
Customer Reviews	3.8 out of 5 stars 36 Reviews
Flavor	Mint
Included Components	Syringe, Teeth Whitening Gel
Item Dimensions	5 x 0.25 x 0.25 inches
Item Form	Gel
Item Weight	0.05 Kilograms
Manufacturer	Expertwhitening
Manufacturer Part Number	4/16EW
Material Type Free	Peroxide Free
Model Number	4/16EW
Number of Items	1
Product Benefits	Whitening
Set Name	4 Gel Pack
UPC	610395217459
Unit Count	4.0 Count

Reviews

F**R

19.08.2018

C**5

1.10.2018

J**E

1.12.2018

E**R

3.11.2022

C**B

3.10.2019

L**.

1.02.2021

S**N

19.02.2019

D**.

18.07.2014

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C$4520

Duties & taxes included

In stock

Sold byAmazon NicaraguaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Nicaragua.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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Great price for an authentic product. Fast international shipping too!

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