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How to Read an INCI List

The ingredient deck on every cosmetic — what the order means, what percentages are disclosed, and what marketing names hide.

How to Read an INCI List beauty glossary visual

The rules of the list

INCI (International Nomenclature of Cosmetic Ingredients) is the standardized name system on every cosmetic package. Three rules unlock most of it:

  • Above 1%: ingredients are listed in descending order of concentration
  • Below 1%: order is arbitrary — they can appear in any sequence after the 1% group
  • The first five to seven entries usually define what the product actually is; the rest is finishing

Reading like a formulator

Phenoxyethanol and similar preservatives are used around 1% — everything listed after them is sub-1%. That is your anchor point.

Fragrance appears as the single word *parfum*. In the EU, 26 known sensitizers must additionally be declared by name.

Marketing names vs INCI

"Vitamin B3" is niacinamide. "Pro-vitamin B5" is panthenol. A glamorous trade name is often a standard ingredient with a story — the INCI list is where the truth lives.

Coyglow note: we publish the full INCI list, exact active concentrations, and naturally-derived percentage on every product page — the deck is the product.

How to Read an INCI List — Coyglow Beauty Glossary