Think Dirty vs ClearaScan: A 'Dirty' Score vs Your Triggers

Think Dirty rates cosmetics on a 1-10 'dirty meter'; ClearaScan checks against your own avoidance list. Here's how they compare.

The core difference

Think Dirty rates cosmetics on a 1-10 “dirty meter” covering health, allergen and sustainability concerns. ClearaScan does not rate products at all; it flags only the ingredients you have chosen to avoid.

Where Think Dirty is strong

It is well known in clean-beauty circles, especially in North America, and is a quick way to get a general read on a cosmetic’s profile and find alternatives.

Where it falls short for sensitive skin

Like other score-based tools, a rating reflects Think Dirty’s general criteria, not your personal triggers. A “clean” product can still contain the exact fragrance compound or preservative that flares your skin.

Where ClearaScan fits

Reading a label by eye, or using a free ingredient-checker, will tell you what is in a product. What it will not do is check it against the specific ingredients you react to.

To close that gap, a personal-list app like ClearaScan lets you save the ingredients you react to once and scan any product to flag only your triggers. It also keeps a Reaction Journal for flare-ups, a shared Care Circle so family or carers can scan for you, and a Trusted Products list for items you have cleared, and it is currently in early access. (Disclosure: our editor co-founded ClearaScan, and we are not paid to mention the others.)

The verdict

Think Dirty is a fine general scorer; ClearaScan is the better fit when you need to know about your specific triggers rather than a universal rating.