Think Dirty

Contains adsIn-app purchases
14.1K reviews
Content rating
USK: All ages
1M+
Downloads
Content rating
USK: All ages
Users Interact
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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.
Easiest way to learn about the cosmetic and personal care product ingredients.
Updated on
Sep 22, 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

13.9K reviews
Irina Nicolae
May 3, 2020
I love the concept, but the app is buggy. Most products I use are not in their database, although they do come from mainstream brands. I tried to enter them, but the process is quite heavyweight. After taking 5 min to enter one product, the app sometimes crashes, losing all the entered data.
26 people found this review helpful
Did you find this helpful?
Think Dirty Inc.
May 19, 2020
Hi Irina, sorry to hear that you are experiencing issues with our app. If you could email us more information (for example: what device you are using, screenshots if applicable, etc.) at questions@thinkdirtyapp.com, our team will be glad to help you resolve this. Cheers from Think Dirty.
Robin Heale
August 30, 2026
5 stars to 1...Edit from 2022 I used to really enjoy using this app as it was my go-to for finding out about new products and a quick reference point for ingredient lists. However, this app has become borderline unusable unless you pay & sign up for their subscription. Even their "free" features in the app are difficult to navigate without being constantly nagged to upgrade and pay for the subscription. Very disappointed as a long-time user and someone who used to recommend this app to everyone.
10 people found this review helpful
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Think Dirty Inc.
August 31, 2026
Thanks for being a long-time user, Robin! As an independent team, your subscription helps us to continue our passion for providing transparency while improving the app for our users. We would love to hear any suggestions to make your experience better at questions@thinkdirtyapp.com, and we hope you’ll consider giving us another chance. 💚
\_iz
August 20, 2026
I cant get passed the sign in screen. as soon as I try to sign up through Google it says "oops, something went wrong, please try again later". I tried signing up through email and it says my email is not valid. I tried just searching for a product but it wouldn't load. I want to use the app, because I want an alternative to Yuka. :(
7 people found this review helpful
Did you find this helpful?
Think Dirty Inc.
August 31, 2026
We're so sorry you are running into trouble signing in and searching. Please try signing out, reinstalling the app, or ensuring your connection is stable. If the issue continues, please email us directly at questions@thinkdirtyapp.com with a screenshot or screen recording so our team can investigate promptly. 💚

What’s new

Your home screen just got personal. The new For You section serves up tips, alerts, and milestones based on your activity, so you always know what matters most for your ingredient journey. No setup needed, just open the app and it's ready for you! We've also squashed some bugs and made performance improvements for a smoother experience.