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Ingredient function glossary

Ingredient label reference

Dimethicone

Silicone conditioning fluid

Occlusives and film-forming ingredients

A silicone fluid used to soften a formula's feel and help it leave a smooth protective layer on the surface.

Also seen as
Dimeticone · Dimeticonum · Polydimethylsiloxane · PDMS
Reported functions
Skin conditioning—emollient · Skin conditioning · Skin protecting
Example formats
Leave-on · Wipe · Balm or cream

Why it may be in a product

It can change spread, slip and after-feel while contributing a surface-conditioning layer.

What the name tells you

It identifies dimethicone and points to possible emollient, conditioning or surface-protecting roles.

What the label cannot tell you

It cannot establish percentage, viscosity or grade, layer thickness, persistence or the finished product's performance.

Evidence status

Official ingredient-function evidence verified current—CosIng marked the record Active on 24 August 2026; it supports the cautious role wording, not a finished-product conclusion.

Reference entries

Evidence and boundaries

Terminology sources, shown plainly.

The glossary uses official European sources to check ingredient terminology and to keep medical, biocidal and finished-product claims outside the glossary. Cosmetic references concern human products; their use here is limited to names and reported formulation functions.

Reference review: 2026-08-25.

Read the Journal editorial method →

Discussed in Journal guides

  1. Source 1

    European Commission — CosIng database

    A non-binding reference for cosmetic ingredient names and reported functions. It concerns human cosmetics and is used here only as a terminology source, not as canine safety approval.

  2. Source 2

    Commission Implementing Decision (EU) 2025/1175

    The current EU glossary of common ingredient names for cosmetic product labelling, applicable from 30 July 2026.

  3. Source 3

    Regulation (EU) 2019/6 on veterinary medicinal products

    Regulatory context for why claims about treating or preventing disease are outside this formulation glossary.

  4. Source 4

    Regulation (EU) No 528/2012 on biocidal products

    Regulatory context for why disinfection and pest-control claims are outside this formulation glossary.