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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✨ Brighten your smile, boost your confidence! 💼

TRUSTED BY EXPERTS - Endorsed by 25,000+ dental professionals and backed by 50+ awards and 100 million brightened smiles.
EFFORTLESS AT HOME USE - No LED light needed—just apply with your custom trays and enjoy a professional-grade whitening experience.
COMPATIBLE WITH ALIGNERS - Works seamlessly with Invisalign, retainers, and custom dental trays for maximum convenience.
PRO LEVEL WHITENING POWER - 35% carbamide peroxide gel delivers up to 10 shades whiter teeth in just 7 days.
FRESH MINT FLAVOR WITH XYLITOL - Keeps your breath fresh while reducing the risk of tooth decay during whitening.

Opalescence 35% CP Mint Gel Syringes offer a professional-grade teeth whitening solution with powerful carbamide peroxide gel that whitens teeth up to 10 shades in 7 days. Designed for easy at-home use without LED lights, this mint-flavored, xylitol-sweetened formula is compatible with Invisalign and custom trays. Trusted by dental professionals and backed by decades of expertise, it delivers fast, effective whitening with fresh breath benefits.