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Occlusive
Every ingredient in the dictionary that works as an occlusive — what it is, where it came from, and how long it has been doing the job.
40 ingredients in the dictionary
Browse by what it does

Beeswax
BEESWAX
Beeswax is the material a honeybee colony builds its comb from, and the oldest wax with a documented place in cosmetics: it sets the shape of a lipstick, thickens a balm, and holds oil and water together in a cream.

Dimethicone
DIMETHICONE
A synthetic silicone fluid sold in every viscosity from thinner than water to a cuttable gum, valued in cosmetics for spreading further than an oil of the same thickness and for leaving a dry rather than a greasy surface.

Lanolin
LANOLIN
The greasy secretion sheep make to keep their fleece from rotting in the rain, recovered from wool-scouring liquor: chemically a wax rather than a fat, despite the old pharmacy name wool fat.

Ozokerite
OZOKERITE
Ozokerite is a mineral wax, mined out of rock rather than distilled from crude oil, whose fine tangled crystals trap liquid oils and stop a lipstick sweating them out onto its own surface.

Petrolatum
PETROLATUM
The semi-solid mixture of saturated hydrocarbons left when refined petroleum residue is dewaxed; it forms a barrier film that slows water loss, and under Regulation (EC) No 1223/2009 the European Union permits it in cosmetics only where its refining history is documented.

Trimethylsiloxysilicate
TRIMETHYLSILOXYSILICATE
A brittle silicone resin built from trimethylsilyl caps around a silica-like core; dissolved in a volatile solvent and left behind when that solvent evaporates, it is the film that makes a lipstick transfer-resistant.