Skincare Ingredient Checker
Paste an ingredient list from any skincare product and get an instant safety analysis. We check for allergens, irritants, comedogenic ingredients, regulatory warnings, and interactions — powered by 24,000+ ingredients from the EU CosIng database.
Free to use. No signup required. Works with any INCI list — copy it from the back of your product or from any online store.
How to Read a Skincare Ingredient List
Every skincare product sold in the US, EU, Korea, and Japan is required to list its ingredients in INCI (International Nomenclature of Cosmetic Ingredients) order — from highest concentration to lowest. The first 5-6 ingredients usually make up 80% or more of the formula.
What Our Checker Looks For
- Allergens & sensitizers — flagged fragrances, preservatives like MI/MCI, and known contact allergens
- Comedogenic ingredients — ingredients rated 3-5 on the comedogenic scale that may clog pores
- Irritants — high-concentration actives, drying alcohols, and harsh surfactants
- Regulatory warnings — ingredients restricted or banned in the EU, Korea, or Japan
- Interactions — risky combinations like AHA/BHA + retinol, or niacinamide + direct acids at low pH
Want to Go Deeper?
Take our free skincare quiz to find which ingredients work best for your skin type, or browse our ingredient directory to research individual ingredients.