Isostearic Acid
Isostearic Acid is a surfactant and cleansing ingredient. It’s in 71 products on Poliage, most often lip, mascara and concealer. Avoid lists on Poliage that include it: none.
Updated October 22, 2026
In plain English
Isostearic acid: used to wash skin or hair and hold ingredients together.
What it does
Contains Isostearic Acid: binding
Function listed in CosIng
Contains Isostearic Acid: cleansing
Function listed in CosIng
Contains Isostearic Acid: emulsifying
Function listed in CosIng
Contains Isostearic Acid: surfactant
Function listed in CosIng
Source: CosIng, the European Commission cosmetic ingredient database, ref 77840, accessed October 22, 2026. Also listed as isooctadecanoic acid.
Products that contain Isostearic Acid
Palladio
FULL-COVERAGE CONCEALER
Concealer · Lists silicones, chemical UV filters, coconut derivatives
Shiseido
Future Solution LX Sérum Intensif Contours Fermeté Shiseido
Lists fragrance, fragrance allergens, drying alcohol, silicones
Catrice
Glam In Gold Glow Lip Balm
Lip · Lists fragrance, fragrance allergens, exfoliating acid, silicones
Clinique
High Impact Extreme Volume Mascara
Mascara · Lists sulfates, silicones
Clinique
High Impact High-Fi Full Volume Mascara
Mascara · Lists coconut derivatives
Clinique
High Impact Mascara
Mascara · Lists sulfates, silicones
e.l.f.
Hydrating Core Lip Shine
Lip · Lists fragrance, fragrance allergens
Kjaer Weis
Im-Possible Mascara
Mascara · Lists fragrance allergens, drying alcohol
MAC
In Extreme Dimension 3D Black Lash Mascara
Mascara · Lists silicones
Westman Atelier
Lip Suede Matte Lipstick
Lip · Lists exfoliating acid
Pixi
LipGlow
Lip · Lists fragrance, fragrance allergens
Bobbi Brown
Long-wear cream shadow stick
Lists silicones
MAC
M·A·CStack Volumizing Mascara
Mascara · Lists silicones
Patrick Ta
Major Volume Plumping Gloss
Lip · Lists fragrance, fragrance allergens, drying alcohol, essential oils
boscia
MakeUp-BreakUp Cool Cleansing Oil
Lists essential oils
Palladio
MATTE CREAM LIP COLOR
Lip · Lists fragrance, fragrance allergens, silicones
SHEGLAM
Max Impact Extreme Volumizing Mascara
Mascara · Lists parabens, silicones
SHEGLAM
Mello Jello Nourishing Lip Balm-Garnet
Lip · Lists fragrance, fragrance allergens
Cocokind
Mineral SPF for Face
Sunscreen · Lists coconut derivatives
CeraVe
Mineral Sunscreen Stick
Sunscreen · Lists silicones
SHEGLAM
Multi-Fix Concealer And Color Corrector
Concealer · Lists silicones
SHEGLAM
Nourishing Neroli Face Cleansing Balm
Cleanser · Lists essential oils
Nudestix
NUDEFIX Cream Concealer
Concealer · Lists drying alcohol, silicones
bareMinerals
ORIGINAL Liquid Mineral Concealer
Concealer · None of Poliage’s flag groups listed
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