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Ingredient scanners can make product labels easier to investigate, but they cannot certify that a cosmetic or supplement is safe for you. Start with the package: cosmetic ingredient lists show ingredients in a generally descending order of predominance, while Supplement Facts panels list serving information and amounts. Then use a scanner as a lookup aid—not as a substitute for the current label, FDA guidance, or clinical advice about an allergy or reaction.
What a cosmetic ingredient list can—and cannot—tell you
In the United States, retail cosmetics generally list ingredients by common or usual name and in descending order of predominance. There are exceptions: ingredients present at 1% or less and color additives may be listed without regard to predominance. Some small packages and distribution arrangements also have specific labeling rules. These requirements make the list a useful starting point, but the order does not reveal exact concentrations.
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FDA explains the naming and ordering rules in its Cosmetic Ingredient Names guidance and Summary of Cosmetics Labeling Requirements.
Marketing terms are not guarantees
FDA says there is no federal definition for “hypoallergenic,” “fragrance-free,” or “for sensitive skin.” Those phrases therefore do not guarantee that a product lacks a particular trigger. A label may list “fragrance” or “perfume” generally rather than name every component. If you know what causes a reaction, check the ingredient declaration for it; if the wording leaves a question, FDA advises contacting the manufacturer named on the product. See FDA’s guidance on allergens in cosmetics.
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A label is not FDA approval
Most cosmetics and cosmetic ingredients do not require FDA premarket approval, apart from certain color additives. Companies and individuals marketing cosmetics are responsible for product safety when products are used as labeled or customarily. An ingredient list is not an FDA safety endorsement or a finding that the product is suitable for every person. FDA outlines this distinction in Cosmetic Ingredients.
How to read a Supplement Facts panel
A Supplement Facts panel provides serving information—including serving size and servings per container—and lists dietary ingredients and their amounts per serving. It tells you what the label declares; it does not mean FDA confirmed the supplement’s safety or effectiveness before sale. FDA does not approve dietary supplements for safety and effectiveness before they are marketed. For the agency’s overview, see FDA 101: Dietary Supplements.
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What an ingredient scanner can add
A scanner may help identify a product, find a database entry, or explain how a service evaluates listed ingredients. Its usefulness depends on the service’s product coverage, category, scoring method, and treatment of missing or changed products. A score is not a regulator’s determination and cannot account for your individual medical history.
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|---|---|---|
| Yuka | Yuka says its app analyzes food and cosmetic products, provides a detailed product sheet, and can recommend similar products. These are the service’s own descriptions, not independently audited findings. | Confirm that the exact product and category appear, and review the product sheet and the service’s method rather than treating a rating as a safety determination. Yuka’s Application page |
| EWG Healthy Living | EWG says its app lets users scan or search personal-care products and access Skin Deep cosmetics ratings. Its FAQ says some categories, including supplements, may not qualify for a score. | Check whether the specific item is covered and how the service explains its ratings. An absent score does not establish that a product is either safe or unsafe. EWG’s Healthy Living App FAQ |
These service descriptions establish broad features, not comparative accuracy. The methods and coverage differ, so a product’s presence in one service—or a rating there—should not be read as a regulator’s verdict or an individualized medical assessment.
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A practical way to check a product
- Read the current package in good light. Check the cosmetic ingredient declaration or Supplement Facts panel on the product you have. A handheld magnifying glass can help with small print, but it does not interpret ingredients or test safety.
- Look up the exact product, not just its name. Scan its barcode or search the service, then check that the entry matches the package and product category.
- Inspect the explanation behind any flag or score. Look for the service’s method and whether it explains individual ingredients or mainly provides an overall score. Do not assume a missing entry means anything about safety.
- Recheck after a formula change. If the current package differs from the database entry, use the package as the reference and do not assume the older listing describes the new formula.
- For a known allergy or reaction, rely on the label and clinical advice. Check for the trigger you know, contact the manufacturer if the declaration is unclear, and ask an appropriate clinician about an allergy or reaction. Do not rely on a scanner score alone.
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