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Think Dirty
By Lily Tse (2013)
Freemium4,000,000 products
App Facts
Think Dirty
By Lily Tse (2013)
Freemium

A barcode-scanning app that rates cosmetics, personal care, and household products on a 0–10 Dirty Meter scale. Products are evaluated for carcinogenicity, developmental/reproductive toxicity, and allergenicity based on ingredient lists.

Pricing
Freemium
Products
4,000,000
Methodology
Rates products on a 0–10 Dirty Meter scale evaluating three areas: carcinogenicity, developmental & reproductive toxicity, and allergenicity/immunotoxicity. Scores are based on ingredient lists cross-referenced against databases including IARC, NTP, and EU regulations. Brands can pay for the Clean Approved certification.
Data Sources

Proprietary database (~1.5 million products), user-submitted scans

Funding
Venture capital, brand partnerships, premium subscriptions, Clean Approved program
🧂Conflict of interest.