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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3DWhitestrips 1 Week Smile Transformation At-Home Teeth Whitening Kit, 14 Treatments, 8 Levels Whiter in 1 Week

Product ID: 668747

Details

Active Ingredients
Hydrogen
Brand
Crest
Item Form
Strip
Number of Items
28
Product Benefits
Whitening

✨8 levels whiter in 7 days

🔒Advanced Seal Technology no-slip grip

🦷Enamel-safe dentist-grade formula

¥11711

Duties & taxes included

In stock

Sold byAmazon JapanDelivered 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 Japan.

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Description

😄 Unlock your brightest smile in just 7 days—because first impressions last!

DOUBLE THE GLOW - Includes two full 1-week treatments so you can maintain your radiant smile all year long.
ADA ACCEPTED SAFE - American Dental Association accepted for safety and enamel protection—whiten without worry.
SMILE BRIGHTER FASTER - Achieve up to 8 shades whiter in just one week—because your time is valuable.
DENTIST TRUSTED FORMULA - Uses the same hydrogen peroxide whitening ingredient trusted by dental professionals.
STAY CONFIDENT STAY ACTIVE - Advanced Seal Technology ensures strips stay put—talk, sip water, and multitask hands-free.

Crest 3DWhitestrips 1 Week Smile Transformation is a professional-grade, at-home teeth whitening kit that delivers up to 8 levels of whitening in 7 days. Featuring enamel-safe hydrogen peroxide and Advanced Seal Technology for a no-slip, comfortable fit, this ADA-accepted treatment includes 28 strips (14 top, 14 bottom) across two 1-week kits, enabling users to achieve and maintain a noticeably whiter smile with ease and confidence.

Specifications

ASIN	B001OOLLVS
Active Ingredients	Hydrogen Peroxide
Age Range Description	Adult
Best Sellers Rank	#14,244 in Health & Household ( See Top 100 in Health & Household ) #18 in Teeth Whitening Strips
Brand	Crest
Brand Name	Crest
Customer Reviews	4.5 out of 5 stars 15,676 Reviews
Flavor	Unflavored
Global Trade Identification Number	00889714000052
Included Components	Applicator
Item Dimensions	1.64 x 5.5 x 5.65 inches
Item Form	Strip
Item Weight	0.1 Pounds
Manufacturer	Procter & Gamble
Manufacturer Part Number	3700020179
Model Number	3700020179
Number of Items	28
Package Size Name	28 Strips
Product Benefits	Whitening
Set Name	Glamorous White 28 Strips
UPC	889714000052
Unit Count	28.0 Count

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Yes, all products are sourced directly from authorized retailers in the US, UK, UAE and India. We maintain strict quality control processes and verify each product before shipping. All items come with applicable manufacturer warranties and are covered by our standard return policy.

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How is product pricing calculated?+

Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

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TrustScore 4.5 | 7,300+ reviews

Sneha T.

Received my product in pristine condition. Great service overall.

1 month ago

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The product quality is outstanding. Exactly what I needed for my work.

1 month ago

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¥11711

Duties & taxes included

In stock

Sold byAmazon JapanDelivered 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 Japan.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Neha S.

Excellent communication throughout the order process. Product is perfect.

2 weeks ago

Ayesha M.

The product exactly matches the description. Very satisfied with my purchase.

5 days ago

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