What is the per centage of peroxide

Hydrogen Peroxide 9.5%. Compare to 10% for {Professional Effects, Vivid, 1 Hour Express}; total amount of peroxide on each strip also matters.

Can you drink coffee while doing this? Or do you have to give up the yummy caffeine?

I'm afraid it's a bad idea to drink coffee while using the whitestrips. I for instance only use them once a week, but as I can't and don't want to give up coffee, I always brush my teeth right after I've had my last sip (literally!).

This is very individual dependent, but my wife and I did these prior to our wedding and I never went over the recommended time, whereas my wife would routinely go 20 min over. I never had any pain or discomfort; she would frequently mention sensitivity to hot/cold food. That said, her teeth sensitivity went away a week after finishing them.

Must I use all of the pouches in order to see results? Or may I use a few and share the rest with someone else?

I saw results in my teeth after 3 days and even more after a week. If you're happy with your results after a week then you could definitely share.

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✨ Smile brighter, faster—because your confidence deserves it!

ENAMEL SAFE FORMULA - Powerful whitening without compromising tooth health
60 MINUTE DAILY POWER - Professional-grade whitening in a quick, convenient session
NO SLIP ADVANCED SEAL - Stay confident—talk and sip water while whitening
1 DENTIST RECOMMENDED - Trusted by experts for safe, effective results
WHITEN 18 LEVELS BRIGHTER - Transform your smile visibly in just 14 days

Crest 3DWhitestrips Radiant Express delivers professional-level teeth whitening at home with 14 treatments that make teeth up to 18 shades whiter in just 2 weeks. Featuring the highest hydrogen peroxide concentration Crest offers, these enamel-safe strips use Advanced Seal Technology for a no-slip, comfortable fit that lets you talk and drink water during treatment. Trusted as the #1 dentist-recommended at-home whitening brand, this kit guarantees a noticeably radiant smile with just 60 minutes of use per day.

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