Ingredient function 213 ingredients · Page 1/5

OPACIFYING

Reducing transparency or translucency of cosmetics.

213 ingredients in the EU CosIng inventory carry the OPACIFYING function designation.

Ingredients with the OPACIFYING function

Abalone Shell Powder is the powder obtained from finely, ground abalone shells, Haliotidae.

Calamine (zinc oxide and ferric oxide)

CAS 8011-96-9

Ceresin. A complex combination of hydrocarbons produced by the purification of ozocerite with sulfuric acid and filtration through bone bla…

CAS 8001-75-0

CHALK

32628

Naturally occurring substances, chalk

CAS 13397-25-6

Charcoal Powder is the dried, carbonaceous material obtained from the heating of organic substances

CAS 16291-96-6 ; 7440-44-0 (generic)

How the OPACIFYING function is used in CosIng

The OPACIFYING function is assigned by the European Commission in the CosIng ingredient inventory. This page currently lists 213 ingredients carrying that function label in the dataset, which helps you move from a functional claim to the exact ingredients that use it.

Reducing transparency or translucency of cosmetics.

Function assignments come from official EU CosIng data. They describe intended cosmetic use, but they do not replace regulatory review of each linked ingredient and any annex records tied to it.

Frequently asked questions

The OPACIFYING function, as defined in the EU CosIng database, describes the role this group of ingredients plays in a cosmetic formulation. There are currently 213 ingredients in the EU CosIng inventory assigned this function. Function labels are standardised terms used in Product Information Files (PIF) and ingredient declarations.

Yes. An ingredient's function in the CosIng inventory is independent of its regulatory status. An ingredient with the OPACIFYING function may also be listed in Annex II (prohibited), Annex III (restricted), or other annexes. Always check each ingredient's annex records for applicable conditions before formulating.

Ingredient functions are documented in the Product Information File (PIF) as part of the cosmetic product safety assessment. They describe the intended role of each ingredient in the formulation and support the safety assessor's review. Functions do not appear on consumer-facing product labels, which list only INCI names.

Use the INCI Checker to paste your full ingredient list and screen it against all Annex II–VI restrictions, CMR classifications and allergen flags from the EU CosIng database.

Tools & next steps

Check your formula

Scan a full INCI list, then review which matched ingredients are tagged with the OPACIFYING function.

INCI Checker

Browse all functions

See the full list of cosmetic ingredient function categories in the EU CosIng inventory.

All functions

Search annex entries for OPACIFYING

Search annex entries whose names or descriptions overlap with the OPACIFYING function keyword.

Search