How often can you use it?

DFW Dental Supplies only sent me 2 syringes. Mike said he would not send my other 2 until I took down a negative review! Not fair!!!!

whats the difference between 20% and 35 %?

I think the lower strength has to stay on for a longer period of time. When I first started wiih this I kept the trays on for hours and the 35% only stays on for 1/2 hour

I have a diy mouthguard that i made from a mold. could i use that for the mouth trays or should i buy new trays?

You maybe able to use it as long as there is room for the gel in the tray.

how long do you leave it on?

I been leave it over night, and according to my dentist that was the cause of my gum damages.35% it’s too much, I should not use more than 15% or even better to be 10%

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35% Teeth Whitening Gel Refill Syringes (4ct) - 5197-2 | 35% Carbamide Peroxide Whitening Gel for Custom Trays. Low-Sensitivity Formula, Mint, Dentist Developed Made in USA.

Product ID: 1813623

Details

Active Ingredients
Carbamide
Brand
Opalescence
Item Form
Gel
Number of Items
4

⚡35% Carbamide Peroxide for rapid whitening

🌱Vegan, gluten-free, kosher, xylitol-enhanced

🕒30-60 min daily application for fast results

$61.48

Duties & taxes included

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Description

✨ Brighten your smile, boost your confidence, and join the 100M+ who whiten smarter! 😁

GENTLE ON SENSITIVITY - Low-sensitivity formula with thick gel minimizes gum irritation and gel migration, making whitening comfortable and effective.
CUSTOM TRAY COMPATIBILITY - Designed for seamless use with your custom-fitted trays, retainers, or clear aligners like Invisalign for precise whitening.
QUICK CONVENIENT AT HOME USE - Short daily sessions of 30-60 minutes with easy-to-use syringes—no LED lights or complicated setups required.
TRUSTED QUALITY ETHICAL FORMULA - Vegan, gluten-free, kosher, and xylitol-sweetened, proudly made in the USA with 30+ years of whitening expertise and 100M+ smiles transformed.
PROFESSIONAL GRADE WHITENING POWER - Achieve up to 10 shades whiter teeth in just 7 days with dentist-developed 35% carbamide peroxide formula.

Opalescence 35% Teeth Whitening Gel offers a professional-strength, low-sensitivity whitening experience at home. Featuring a potent 35% carbamide peroxide formula in mint-flavored gel syringes, it whitens teeth up to 10 shades in 7 days with just 30-60 minutes of daily use. Compatible with custom trays and clear aligners, this vegan, gluten-free, kosher formula is designed to minimize gum irritation and gel migration. Made in the USA by a trusted dental brand with over 30 years of expertise and millions of satisfied users.

Specifications

ASIN	B000MMYI8G
ASIN	B000MMYI8G
Active Ingredients	Carbamide Peroxide
Age Range Description	Adult, teens
Allergen Information	Gluten Free
Best Sellers Rank	#1,696 in Health & Household ( See Top 100 in Health & Household ) #1 in Teeth Whitening Gels
Brand Name	Opalescence
Customer Reviews	4.5 4.5 out of 5 stars (3,484)
Flavor	Mint
Included Components	Teeth Whitening Gel
Item Dimensions	6 x 6 x 6 inches
Item Form	Gel
Item model number	35%
Manufacturer	Opalescence
Manufacturer	Opalescence
Manufacturer Part Number	35%
Material Features	Gluten Free, Kosher, Vegan
Material Type Free	Gluten Free
Model Number	35%
Number of Items	4
Product Benefits	Effective Teeth Whitening, Multiple Concentration Options, Sensitivity-Friendly Whitening, Customizable Wear Time, Professional-Grade Formula, Dentist-Developed, Enamel-Conscious Whitening, Sticky Viscous Gel, Helps Minimize Gel Migration, Easy Syringe Application, Compatible With Custom Whitening Trays, Xylitol-Enhanced Formula, Vegan, Certified Gluten-Free, Kosher, Made in the USA, Available in …
Product Dimensions	6 x 6 x 6 inches; 1.13 ounces
Set Name	4 Syringes Total
UPC	883205038869 883205040138
UPC	883205038869 883205040138

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