Think Dirty – Shop Clean4.33.0 - App Store

Think Dirty is your go-to skincare scanner, beauty product checker, and cosmetic ingredient analyzer - designed to help you decode labels and make safer choices. Loved by over 8 million users, our app makes it easy to learn about potentially toxic ingredients in your skin care, hair care, and cosmetic products. Use our barcode scanner, and Think Dirty instantly delivers easy-to-understand, trustworthy product ratings and ingredient analysis. Whether comparing products, checking for skin allergy triggers, or scanning items in-store, Think Dirty empowers you to shop smarter and live cleaner. Think Dirty is free to download with premium features for deeper product reviews and clean beauty human curated recommendations and verified scientific data, powered by AI.

WHY THINK DIRTY?
- Ingredient-Focused Ratings: Think Dirty(R) uniquely evaluates products based solely on their chemical content, not brand reputation or marketing claims.
- No Greenwashing: We don't consider environmental or social factors that can artificially lower a product's toxicity rating - our focus is strictly on health-related impact.
- Truly Independent: Think Dirty(R) remains unaffiliated with third parties, ensuring unbiased, consumer-first product assessments.

TOP FEATURES:
- Scan or Search Products Instantly: Compare over products - skincare, cosmetic, hair care, personal care, household, baby, and pet items - and get detailed health impact breakdowns.
- Real-Time Beauty Scanner (Premium & All Access): Instantly scan beauty, skincare, cosmetic, and household products for immediate safety ratings, toxicity scores, and cleaner alternatives - no waiting required!
- Personalized Ingredient Preferences (Premium & All Access): Pre-select your allergens, acne triggers, and ingredient preferences for a personalized shopping experience. You'll also receive alerts if carcinogens or harmful ingredients are detected in the products you view.
- Ingredient Checker & Alerts (Premium & All Access): Flag allergens or harmful ingredients ahead of time and get alerts for products you scan or view.
- Curated Safe Product Lists (Premium): Browse categories such as Mineral Sunscreens, Vegan Makeup, Cruelty-Free Beauty, SLES-free Skincare, Sustainable Beauty, and more.
- Product Comparison: Compare products side-by-side to find the safest, most effective option for your skincare routine.
- UPC + OCR Submissions: Can't find a product? Use OCR to scan the barcode and the ingredients label, then submit. Contributors will receive a discount code and notification once the product is added!

LOVED BY EXPERTS:
Recommended by: Dr. Amen, Dr. Darshan Shah, Dr. Anthony Youn, and Dr. Mindy Pelz

AWARDED:
- App Store "App of the Day" - 2020, 2023, 2025, 2026
- App Store Voice of the Change - Changemaker 2023
- Featured in App Store Canada's #VoicesOfChangeCanada
- Fast Company World Changing Ideas Awards - Overall Winner, 2020
- Trusted by 8M+ Users

TRUSTED BY EXPERTS + PRESS:
"There's an app I liked called, Think Dirty." - Dr. Daniel Amen, Amen Clinic
"Scan all your beauty products and if it scores a 3 or higher, toss them out." - Dr. Mindy Pelz
"The cosmetics that you use and the stuff you put on your body, there's a great app called Think Dirty." - Dr. Darshan Shah
"What changed my routine and really my life is the Think Dirty app." - Ruby Rose
"An App That Helps You Find the Safest Make-up." - The Atlantic
"Tse's mission is personal - her mother is a breast cancer survivor." - Fast Co.
"It helps me make informed choices on products I bring home." - TED Blog
"Think Dirty miiiight be the best app ever." - Grist

Whether you're managing acne-prone skin, searching for pregnancy-safe cosmetics, seeking vegan hair products, or simply want to understand what's in your baby and household products, Think Dirty gives you the transparency to make safer choices for your health.

Download the Think Dirty app and join millions making cleaner beauty choices every day.

Version History What's New: Fall cleaning for your app! We've made performance improvements and under-the-hood updates for a smoother scanning experience. 4.33.0 Sep 24 Consider this our August glow-up. We detoxed the code, so the app runs faster and cleaner than your new skincare routine. Squashed a few bugs while we were at it. Feeling the good vibes? Leave us a rating and share the clean love. Your reviews mean everything to us! 4.32.0 Aug 20 Great news! Your Ingredient Alerts just got smarter. Every alert list now comes loaded with our recommended ingredients to watch out for, so you're protected from the start. Of course, you can still customize your list anytime to match what matters most to you. No action needed, just open the app and start scanning with confidence! 4.31.0 Jul 15 Recent Searches are here! Tired of retyping that hard-to-spell ingredient? Us too. Your recent searches now show up instantly in the search bar, so getting back to a product or ingredient takes one tap. We also squashed a few bugs and made some behind-the-scenes improvements. 4.30.0 Jun 9 Spring clean your routine with Analyze Ingredients. No barcode? No problem. Paste an ingredient list or product URL, and we’ll break down every ingredient so you can shop with peace of mind. 4.29.0 Apr 28 Spring cleaning – but for your app! Performance improvements and under-the-hood updates for a smoother scanning experience. 4.28.3 Apr 6 Spring cleaning – but for your app! Performance improvements and under-the-hood updates for a smoother scanning experience. 4.28.2 Apr 5 We’ve improved the scanning experience! Our skincare scanner is faster, more accurate, and now supports a wider range of barcodes. Scan any beauty or cosmetic product to instantly see ingredient safety ratings, toxicity scores, product reviews, and cleaner alternatives. Bug fixes and performance improvements ensure smoother scanning, even in low light. Your trusted ingredient checker just got better. Update now and scan smarter! 4.28.1 Mar 23 We’ve improved the scanning experience! Our skincare scanner is faster, more accurate, and now supports a wider range of barcodes. Scan any beauty or cosmetic product to instantly see ingredient safety ratings, toxicity scores, product reviews, and cleaner alternatives. Bug fixes and performance improvements ensure smoother scanning, even in low light. Your trusted ingredient checker just got better. Update now and scan smarter! 4.28.0 Mar 17 We’ve improved the scanning experience! Our skincare scanner is faster, more accurate, and now supports a wider range of barcodes. Scan any beauty or cosmetic product to instantly see ingredient safety ratings, toxicity scores, product reviews, and cleaner alternatives. Bug fixes and performance improvements ensure smoother scanning, even in low light. Your trusted ingredient checker just got better. Update now and scan smarter! 4.27.1 Mar 11 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! 4.27.0 Feb 19 Bug fixes and stability improvements. 4.26.2 Feb 11 Hey Dirty Thinkers, we’re kicking off the new year with brand-new Brand Pages, giving you a clearer look at the brands behind your favourite products, from their values to ingredient transparency, all in one place. As part of our fresh start for 2026, we also waved goodbye to some pesky bugs and polished things up behind the scenes, so everything runs smoother, cleaner, and just the way it should. 4.26.1 Jan 22 Hey Dirty Thinkers, we’re kicking off the new year with brand-new Brand Pages, giving you a clearer look at the brands behind your favourite products, from their values to ingredient transparency, all in one place. As part of our fresh start for 2026, we also waved goodbye to some pesky bugs and polished things up behind the scenes, so everything runs smoother, cleaner, and just the way it should. 4.26.0 Jan 10 Hey Dirty Thinkers, jingle bugs, jingle bugs, bugs are gone away, code is clean and things run lean, working as they should today, with polished fixes behind the scenes delivering a smoother, more reliable Think Dirty experience. 4.25.0 12/22/2025 Our new Ingredient Function makes it easier than ever to understand what’s in your products. Search is quicker and sharper, and we’ve tidied up bugs to keep things smooth. Update and take a clearer look inside. 4.24.0 11/26/2025 Your ingredient sleuthing just got a sprinkle of winter magic. Ingredient Function is here to spell out what every ingredient does — no wizardry or science spellbook needed. Search got extra sparkle too, popping up brands and products faster than twinkle lights turning on. And yes, we bundled in bug fixes and performance boosts to keep things running merry and bright. Update now and see what’s really inside. 4.23.0 11/18/2025 Your ingredient sleuthing just got easier. Meet Ingredient Function, your guide to what every ingredient really does — no science degree required. Search got a glow-up too. Start typing and brands and products appear faster than you can say clean beauty. Smarter search, deeper insights, no fluff. Update now and see what’s really inside. ^_^ 4.22.0 10/27/2025 Bug fixes and stability improvements. 4.21.0 10/02/2025 Bug fixes and stability improvements. 4.20.1 08/16/2025 Sun’s out, bugs out! We cleaned up our code like a mineral sunscreen—no junk, no drama, just smooth protection for your app experience. 4.20.0 07/28/2025 Sun’s out, bugs out! We cleaned up our code like a mineral sunscreen—no junk, no drama, just smooth protection for your app experience. 4.19.0 07/08/2025 New tiers are here—monthly or forever. Pick what fits, now more tailored than ever. We squashed some bugs, sped up the flow; just in time for your summer glow. Update today, don’t miss the ride—A cleaner, smoother app inside. ^_^ 4.18.0 06/16/2025 We’ve done a little spring cleaning — bugs are out, smooth vibes are in. ^_^ 4.17.0 05/04/2025 We’ve done a little spring cleaning — bugs are out, smooth vibes are in. ^_^ 4.16.0 04/24/2025