EWG Skin Deep vs ClearaScan: Hazard Scores vs Your Own List
EWG Skin Deep rates products on a hazard score; ClearaScan checks against your personal triggers. A fair comparison of how they differ, the debate over hazard scoring, the UK angle, and where each falls short.
The core difference
EWG Skin Deep, run by the US Environmental Working Group, is a large database that gives cosmetics and ingredients a hazard score, roughly 1 to 10, based on its reading of the research. ClearaScan does something quite different: it does not rate hazard at all, but checks a product against the specific ingredients you have chosen to avoid. One offers a general safety verdict for everyone; the other answers a personal question about your own triggers. Understanding that split is the key to knowing which is useful to you, and when.
Where EWG Skin Deep is strong
EWG Skin Deep has genuine strengths. It has huge name recognition and a vast database covering tens of thousands of products and ingredients. It offers plenty of free educational content, and it is widely cited by US wellness media, so many people arrive already familiar with it. If you want a quick general read on a cosmetic’s profile, or you want to discover lower-scoring alternatives to something, it is a well-known and accessible starting point. For browsing and general awareness, it does a useful job, and the underlying idea, giving people more information about what is in their products, is a fair one.
Where it falls short
Two things matter for a UK sensitive-skin shopper. First, it is US-regulation-centric. Its framing follows FDA rules and references such as California’s Proposition 65, which does not map neatly onto UK and EU labelling. In the UK and EU, for example, 26 named fragrance allergens must be declared on cosmetic labels, a detail that is central to many people’s sensitivities but is not the axis EWG is built around. Second, the hazard-score model itself is debated. Critics argue it tends to rate ingredients by hazard without properly weighting dose and real-world exposure, which can make ingredients that are perfectly safe at the levels actually used look alarming. That is a genuine limitation to keep in mind, and it is fair to treat any single score as one informed opinion rather than the last word. Above all, a general hazard score is simply not the same as “contains your trigger”.
Where ClearaScan fits
A hazard reference tells you how a product rates in general; it cannot tell you whether it contains the fragrance compound or preservative that flares your skin. ClearaScan flips the question round: save the ingredients you react to once, then scan any product, food, medication or cosmetic, and it flags only yours. It also keeps a Reaction Journal, a shared Care Circle so family can scan for you, and a Trusted Products list. Its own honest limitations belong here too: it is currently in early access and still maturing, it needs you to build your own list before it can help, and it only flags what you have added, so it is only as complete as your list. It also does not attempt to tell you whether an ingredient is “good” or “bad” in general, because that is not its purpose. Disclosure: our editor co-founded ClearaScan, and we are not paid to mention EWG.
A fair comparison
What each judges. EWG gives a general hazard verdict; ClearaScan matches your personal triggers.
Regional fit. EWG is US-oriented; ClearaScan is built around whatever list you set, which can reflect UK and EU labelling.
Breadth. EWG focuses on cosmetics and their ingredients; ClearaScan spans food, medicine and cosmetics for your triggers.
Maturity. EWG is long-established with a huge database; ClearaScan is newer and in early access.
Where each falls short. EWG’s score is debated and general; ClearaScan is only as good as the list you build and is still maturing.
Who each suits best
Choose EWG Skin Deep if you want a general, well-known hazard reference and lower-scoring alternatives, and you are comfortable treating the score as one opinion. Choose ClearaScan if the question that matters is whether a product contains the specific things you personally react to.
An honest recommendation
Use EWG Skin Deep as a general, US-leaning hazard reference if that suits you, reading the score as informed opinion rather than gospel and remembering its US framing. Use ClearaScan when the question that actually keeps your skin comfortable is whether a product contains your own triggers. The two are not rivals so much as answers to different questions, and some people find value in both. Neither replaces professional advice for diagnosing or managing a genuine allergy.
The Sensitive Skin Ingredient Decoder
A free one-page guide to reading a skincare label fast: the irritants to watch, the fragrance loopholes, and what "fragrance-free" and "hypoallergenic" really mean.
Common questions
What is the EWG Skin Deep hazard score?
It is a rating, roughly 1 to 10, that the US Environmental Working Group assigns to cosmetics and ingredients based on its reading of the research, where lower is considered lower hazard. It is a general safety verdict rather than a personalised check against your own triggers.
Is EWG Skin Deep suitable for UK shoppers?
It is usable but US-centric. Its framing follows US regulation, such as FDA rules and California's Proposition 65, which does not map neatly onto UK and EU labelling, where the 26 fragrance allergens must be named. UK shoppers can still learn from it, but should read it with that context in mind.
Why is hazard scoring debated?
Critics argue that rating ingredients by hazard alone, without properly weighting dose and real-world exposure, can make ingredients that are safe at the levels used look more alarming than they are. Supporters value the caution. It is reasonable to treat a hazard score as one informed opinion rather than a definitive verdict.
How is ClearaScan different from a hazard score?
ClearaScan does not rate hazard at all. It checks whether a product contains the specific ingredients you have chosen to avoid and flags only those. A hazard score answers whether a product is generally concerning; ClearaScan answers whether it contains your personal trigger.
Can I use both together?
Yes. Some people use EWG Skin Deep to learn about ingredients in general and a personal-list tool to check products against their own triggers in the shop. They answer different questions, so using both can give you general context and personal precision.