Think Dirty

Contains adsIn-app purchases
4.5
13.8K reviews
1M+
Downloads
Content rating
Everyone
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About this app

Think Dirty is the easiest way to learn about the potentially toxic ingredients in your cosmetics and personal care products. It’s an independent source that allows you to compare products as you shop. Just scan the product barcode, and Think Dirty will give you easy-to-understand info on the product, track dirty ingredients, and shop for cleaner options.

• Search by Keyword or Barcode Scanning: Our database lists over 850,000 cosmetics and personal care products from Canada and the U.S.

• Personalized Ingredient Preferences (Premium): Save time by pre-selecting your Allergens, Ingredient preferences and personalizing your shopping experience. Ingredient alerts will be presented if we find flagged ingredients in the products you viewed.

• Search by Ingredient (Premium): Unlock to get detailed information about its usage, health impact, sources, and which products contain such ingredients.

• Search by Curated Categories (Premium Feature): Unlock to access our curated speciality lists such as Mineral Sunscreens, SLES-Free Skincare, Vegan Makeup

• Expiry Date Tracker: Is that mascara still good to use, but don't remember how long you have had it? Now you can keep track of its expiry date on your Bathroom Shelf. Enter Open Date and Shelf Life, and you will never put expired products on your face again!

• Dirty Meter®: A comprehensive rating is given, along with detailed (but easy-to-understand) information on ingredients, certifications, and health impacts.

• My Bathroom Rating: Keep track of what’s already in your bathroom. Learn your current bathroom rating, and track your progress on “cleaning” it up.

• Upvote Non-Rated Products: Let your voices be heard! Upvote, and we will aggregate user responses and reach out to brands on users’ behalf to encourage them to get their products verified and rated.

• Shopping Lists: Save products and make shopping faster and easier.

• Shop Now: Buy products directly from Amazon.com, Amazon.ca, Well.ca, Sephora.com, and Amazon.co.uk.

• UPC Submission: Are we missing a product? Use your device's camera to scan its barcode and capture the list of ingredients with OCR, then submit it to us. For registered users who submit products, we thank you with a discount code to use our beauty box subscription. And will notify you once they are in our database.


As mentioned in:

Fast Company’s 2020 World-Changing Ideas North America

25+ Apps To Make Your Everyday Life Easier – TED Blog

7 New Beauty Apps You Need to Download Now – Allure Magazine

26 Underrated Apps Every Twentysomething Should Download Right Now – BuzzFeed

The Beauty And Fashion Apps You Need To Download ASAP – Glamour Magazine UK

As a small team, we are working diligently to accommodate the overwhelmingly positive amount of users' submissions (especially from our EU users) to our database.

We appreciate constructive feedback. Please email us at questions@thinkdirtyapp.com if you have comments or suggestions.
Updated on
Feb 13, 2026

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
This app may share these data types with third parties
App info and performance
This app may collect these data types
Photos and videos
Data is encrypted in transit
You can request that data be deleted

Ratings and reviews

4.5
13.6K reviews
Britny Maybee
March 8, 2021
I thought the idea of this app was really neat when I first installed it but it's turned out that some products I scan don't even come up. I've even taken the time to try and submit items into their system but nothing ever came of it (submitted 2 items back in November and they never even looked at them). As much as I wanted to like this app, it's not very useful if the items I use can't be scanned.
55 people found this review helpful
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Think Dirty Inc.
June 15, 2021
We are sorry that you couldn’t find the info that you needed. We are continuously working to add more products to the database! We tend to prioritize products that have been highly requested by users through submissions. Please email us your username at questions@thinkdirtyapp.com & we'll try our best to add the products.
A Google user
December 10, 2018
The idea is great, however I believe there is a bug that makes the app not very useful. It requires me to create an account in order to look at the details of a product. I created an account, but the app doesn't sign me in to the account I've created, but keeps on telling me I need to sign in to view the details...So I'm constantly on "try it out" mode with restricted access, even though I've created an account.
8 people found this review helpful
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Think Dirty Inc.
January 7, 2019
Hi Yasemin, thank you for downloading our app and apologize for the inconvenience. Could you email us more information (for example: what device you are using, screenshots if applicable, etc.) at questions@thinkdirtyapp.com so that we can look into what happened?
A Google user
March 2, 2020
A great idea for an app...with much to be desired. I originally got this app 2 years ago because I have allergies to some ingredients and I found the lists could help me see it it is something I should avoid. Some products scan and others need to be submitted. I have submitted products from a year ago that are still not in the database. Trying this app out again today, I now find it crashes when trying to submit new products. If there are no improvements, I will have to delete it.
54 people found this review helpful
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What’s new

We've improved the scanning experience! The updated scanner is faster, more accurate, and now supports a wider range of barcodes. Scan any product to instantly see ingredient safety ratings, toxicity scores, and cleaner alternatives. Bug fixes and performance improvements ensure smoother scanning, even in low light. Your health-conscious shopping just got easier. Update now and scan smarter! 🌿