INCI name

HYDROGENATED STYRENE/ISOPRENE COPOLYMER

Hydrogenated styrene/isoprene copolymer

A synthetic polymer used to thicken oils.

What it is

Hydrogenated styrene/isoprene copolymer is a synthetic polymer of styrene and isoprene that has been hydrogenated after polymerisation. CosIng lists it as a viscosity-controlling agent; polymers of this type are used to gel or thicken oils.

Where it is used

Used in lip glosses, lipsticks, oil gels, cleansing balms and makeup.

Limits of interpretation

The INCI list shows which ingredients are present, not how much of each. Above 1%, ingredients are listed in descending order of weight; below 1% the order is free.

The INCI name does not show the molecular weight or the proportion of the two monomers.

Functions

Viscosity controlling
Increasing or decreasing the viscosity (thickness) of cosmetics.

EU regulation

This ingredient is not listed in the annexes of Regulation (EC) No 1223/2009 in the CosIng data.

Products with this ingredient (60)

Check a full ingredient list