Think Dirty

Contains adsIn-app purchases
4.0
13.2K 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
Aug 8, 2025

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

4.0
13.1K reviews
Angelina Cardiel
July 6, 2025
The app seemed pretty extensive, and I was impressed with the amount of information available on each ingredient. However, after the 1st scan, all information and options were "locked" unless I agreed to a free trial of premium. The option to add your "preferred ingredients" wasn't ever an option, and when cross checked with the Yuka app, it seemed like it was pretty off the mark. (although Yuka is aimed more towards being vegan, etc). Deleted it, but if you're willing to pay, it seems good.
5 people found this review helpful
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Think Dirty Inc.
July 7, 2025
Hi! Our users can access ingredient ratings, product searches, and more at no cost. While our Premium & All Access plans unlock extra tools and features, they’re optional. As for Yuka, they require a subscription to search products. We’re always working to improve accessibility and transparency, and we appreciate you for sharing your thoughts! 💚
A Google user
October 1, 2018
I love the concept of this app, and for the products that ARE in their database, it works great, but they are missing a lot. Only maybe 1/3 of my bathroom products came back with results, and honestly those were mostly the ones I already knew were safe. I think they should have an additional search bar for ingredient names as well, that way when something comes back with no results, I can at least search the names of the ingredients I don't know or sound suspicious to me.
89 people found this review helpful
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Think Dirty Inc.
October 2, 2018
Hi there, thanks for your review and we are so sorry that you couldn’t find the info that you needed. Please email us at questions@thinkdirtyapp.com so we can help take a look at what products you were looking for. We have also noted your suggestion about searching by ingredients. Thanks again!
Jessica Stewart
April 28, 2020
I like the concept, but the longer I've used the app the more frustrating it has become. I've come across items which have more than one rating, or list ingredients that aren't on the actual item. Many of my products don't even appear on this app and I haven't seemed to get very quick results from submitting my own item for them to review. For a lotion I submitted, I listed the name and ingredients, then eventually got back a rating for the same brand but a different scent. App still needs work.
98 people found this review helpful
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What’s new

We’ve improved your clean beauty experience with smarter auto-suggestions, a refreshed search screen, and smoother performance. Plus, we fixed some bugs to keep things running clean and smooth! 🧼🔍✨