A branched C18 fatty acid.
What it is
Isostearic acid is a branched-chain isomer of stearic acid (isooctadecanoic acid) that is liquid at room temperature. CosIng lists it as a binding, cleansing agent and emulsifying and cleansing surfactant.
Where it is used
Used in creams, makeup, lip products, cleansing products and as a raw material for esters.
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 reveal whether it was made from plant or animal fatty acids.
Functions
- Binding
- Providing adhesive properties during and after compression in cosmetic tablets and/or cakes.
- Cleansing
- Helping to keep the body surface clean.
- Surfactant – emulsifying
- Helping suspensions or dispersions of liquids in a second liquid by reducing the surface tension of the substances to be emulsified.
- Surfactant – cleansing
- Wetting body surfaces, emulsifying or solubilizing oils, and suspending soil (generally, such ingredients contribute to the foaming and lathering properties of cleansing products).
EU regulation
This ingredient is not listed in the annexes of Regulation (EC) No 1223/2009 in the CosIng data.
Products with this ingredient (73)
- Vitamin C Concealer · The Body Shop
- XX Revolution Skin Blur Soft Focus Skin Tint · Revolution
- XX Revolution Glow Skin FauXXdation Foundation · Revolution
- XX Revolution ConcealXX Super FiXX Concealer · Revolution
- Revolution Skin Silk Bronzer Stick · Revolution
- Revolution Pro CC Cream Perfecting Foundation SPF30 · Revolution
- Revolution Colour Filter Correcting Concealer · Revolution
- Revolution Skin Silk Serum Foundation · Revolution
- Revolution IRL Filter Longwear Foundation · Revolution
- Revolution IRL Filter Finish Concealer · Revolution
- Revolution Conceal & Glow Foundation · Revolution
- Revolution Conceal & Define Concealer · Revolution