iPhone Screenshots


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

• Barcode Scanning: over 550,000+ cosmetics and personal care products majority from Canada and the U.S. are currently in our database.

• 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.

• Shopping lists: save products to make shopping faster and easier.

• Buy it now: buy products directly from Amazon.com, Amazon.ca, Amazon.co.uk

• UPC Submission: Are we missing a product? Scan and submit a barcode for us to look into. For registered users who submitted products, we thank you and will notify you once they are in our database.

As mentioned in:

New York Times, O Magazine, Today's Show, NPR, Fast Company, Huffington Post, TED Blog, Allure Magazine, The Atlantic, PSFK, New York Magazine, Buzzfeed, Consumer Reports ShopSmart Magazine, Global News, Toronto Star, City TV, CTV, App Central, Brit + Co, Refinery 29, Telegraph, The Guardian, Design Taxi

"What changed my routine and really my life is the Think Dirty app." - Ruby Rose

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

“It helps me make informed choices on products that I am bringing home.”
– TED Blog Staff, Kyle Shearer

"Tse's quest for greater transparency is personal. Her mother is a breast cancer survivor, so she's sensitive to hidden dangers in the products around us."
– Fast Co. Exist

"Think Dirty miiiight be the best app ever" – Grist

"Buying safe cosmetics has never been easier." – Ecouterre

"Brilliant idea: 'Think Dirty' app tells you the ingredients in your cosmetics."
– Inside.com Jason Calacanis

"Think Dirty is an app that makes figuring out exactly what you’re slathering on your face, lips, bod (and, yikes, then washing down the drain) as easy as snapping a picture."
– Brit + Co.

"An App That Helps You Find the Safest Make-up."
– The Atlantic

"With a tool like Think Dirty, consumers can help find and promote good companies that are using nontoxic ingredients. You shouldn’t have to be a toxicologist to know how to find safer products."
– Janet Nudelman, Campaign for Safe Cosmetics

"I love knowing the health impact of what's on my bathroom shelf. Every consumer of beauty products needs this free app"
– Karina Birch, Founder of Rocky Mountain Soap

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

We appreciate constructive feedbacks. Please email us at questions@thinkdirtyapp.com if you have comments or suggestions.

What's New

Version 4.1.0

***Exciting New Feature***

- Now you can review your favourite products and let our users know if they work! Go to product screen, tab on "Review Product" to write a review :)

Ratings and Reviews

4.6 out of 5
3.5K Ratings
3.5K Ratings

Useful app for a naturally cleaner lifestyle


This app is useful to find naturally driven products as opposed to a more chemical based product available in many stores. The only issue is, the app will rate a product low, then in a larger size or a different scent it is rated high. For example I was looking for a cleaner, truly greener laundry detergent, it included “all” brand, “free and clear”. The list rated it at a 3, when I scroll down, a bigger size of the exact same product, same ingredient, is rated an 8?! I think the app needs better regulation of products for higher integrity to all who use. This will ensure the products are up to date. I also learned a big name household company bought out the app, and now many of their products are listed lower, when it had a high rating before. Definitely look more into the products you wish to try. However the app is great for a quick comparison when you are choosing a better, honest, and of course natural selection for your family 😊

Very misleading now pushing notices more than daily


I downloaded this app a few years ago after reading about it on a favorite bloggers site. She was very impressed. I checked a few things I use and a few things the blogger was throwing out. I have a BS, MS, and doctorate degree in the sciences. My masters is in Environmental Sciences. I have always worked in the biological sciences. I found the app information and scoring quite alarmist. Here’s an example. Selsun Blue is listed as toxic. The reason because it has Selenium. Selenium can be toxic. But it is also an essential mineral for animals. So just stating it is toxic is silly. A short exposure to selenium in your shampoo should not be harmful. In fact tinea versicolor a fungal infection of the skin can be treated by applying Selsun Blue to your skin and waiting 20 minutes before showering. So the suggestion that simple use of Selsun Blue as a dandruff shampoo is dangerous because it includes selenium is at least misleading.

I haven’t used the app in a few years.

What lead me to comment today is the fact that this app has started sending me notices. It is pushing products.

A blessing and a curse


A friend posted online about this app several months ago and immediately I was obsessed. I liked how products were broken down and each ingredient rated and explained; it seemed very thorough. Every time I shopped online or went to a store for a new product, I opened the app and searched and scanned, checking to see if what I wanted was “approved.”
Here’s the catch: I fully believe that they totally ignore user-uploaded products. Really basic and popular things I use, from major brands, have not been added for months now. Brands that are up-and-coming in the natural/non-toxic beauty world are not even listed. The makers of this app are clearly focusing on promoting products from sponsor companies and other great products get left in the dust.
It is useful but only to a certain extent. A good starting point for someone looking to clean up their beauty routine but shouldn’t be considered a thorough resource. Also, it glitches and refuses to load about a third of the time for no apparent reason.


Think Dirty Inc.
53.6 MB
Health & Fitness
Requires iOS 10.0 or later. Compatible with iPhone, iPad, and iPod touch.
English, Simplified Chinese, Traditional Chinese
Age Rating
Rated 4+
© All trademarks are registered for Think Dirty Inc.


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