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 21, 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
Dermalogica
Age Reversal Eye Complex
Eye cream · Lists retinoid, silicones
Tatcha
Ageless Revitalizing Eye Cream
Eye cream · Lists fragrance, drying alcohol, silicones
Tatcha
Ageless Revitalizing Neck Cream
Moisturizer · Lists fragrance, fragrance allergens, exfoliating acid, essential oils, silicones
SHEGLAM
All-In-One Volume & Length Mascara
Mascara · Lists drying alcohol, silicones
Avon sun protection spf 40
None of Poliage’s flag groups listed
Ole Henriksen
Banana Bright Mineral Sunscreen SPF 30
Sunscreen · Lists fragrance, fragrance allergens, exfoliating acid
Shiseido
Bénéfiance NutriPerfect - Lotion Adoucissante Pro-reconstituante
Lists fragrance, fragrance allergens, drying alcohol, silicones
Henkel
Brillance coloration permanente intense 891 Noir bleuté
Lists fragrance, fragrance allergens, sulfates, parabens, silicones, coconut derivatives
Pai
British Summer Time | Sunscreen for Sensitive Skin
Sunscreen · Lists exfoliating acid, essential oils, coconut derivatives
SHEGLAM
Bubble Glow Blush Bar
Blush · None of Poliage’s flag groups listed
SHEGLAM
Buttery Bliss Blush Stick
Blush · Lists fragrance, fragrance allergens
Naturopathica
Calendula Essential Hydrating Lotion SPF 30
Sunscreen · Lists fragrance, coconut derivatives
Clinique
Chubby Lash Fattening Mascara
Mascara · Lists silicones
COOLA
Clear Skin Oil-Free Moisturizer with Zinc Oxide
Sunscreen · None of Poliage’s flag groups listed
Dermalogica
Clearing Skin Wash
Cleanser · Lists fragrance allergens, exfoliating acid, salicylic acid, coconut derivatives
ColourPop
Cloud Whip Lip & Cheek Pudding
Blush · Lists silicones
Revlon
ColorStay Full Time Mascara
Mascara · None of Poliage’s flag groups listed
bareMinerals
Complexion Rescue Tinted Hydrating Gel Cream Broad Spectrum SPF 30
Lists coconut derivatives
Medik8
Crystal Retinal
Serum · Lists fragrance allergens, retinoid, essential oils
MAC
Dazzlelips Crayon
Lip · None of Poliage’s flag groups listed
Unilever
Dove DermaSpa Crème Hydratante Corps Richesse Cachemire Pot 300ml
Lists fragrance, fragrance allergens, drying alcohol, parabens, silicones, coconut derivatives
Laura Geller
Easy Cover Up Hydrating Concealer
Concealer · None of Poliage’s flag groups listed
Thrive Causemetics
Empowershine Satin Lip Cream
Lip · Lists fragrance
MAC
Extended Play Gigablack Lash Mascara
Mascara · Lists silicones
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