Very Disliked
Isopropyl Isostearate
May cause Acne
Some ingredients have a higher likelihood of clogging pores or triggering breakouts, especially for acne-prone skin. However, skin reactions are individual - what causes breakouts for one person may work fine for another. Patch test if you're concerned.
Can worsen Oily Skin
Some ingredients are known to potentially contribute to excess oil or shine, but they don't affect everyone the same way. Skin can be oily for many reasons, so it's always a good idea to consider your unique skin needs when choosing products.
May feed Fungal Acne
Non-fungal acne-safe products contain ingredients that can worsen fungal acne. If you suspect fungal acne, consult a dermatologist for proper diagnosis.
Explained
Isopropyl Isostearate is a synthetic ester made by combining isopropyl alcohol and isostearic acid. Its an emollient that helps hydrate skin.
This also allows it to improve spreadability of a product and give products a silky feel on skin.
While this ingredient was given a comedogenic rating of 4-5, research has shown that finished products containing comedogenic ingredients don't always increase the formation of microcomedones.
Since isostearic acid is a C18 fatty acid, this ingredient falls within the range that Malassezia feeds on. This ingredient may not be fungal acne safe.
See all 460 products with Isopropyl Isostearate
What it does
Emollient
Having the quality of softening or soothing the skin.
Skin Conditioning
To hydrate and soften skin
Prevalence
Less common
Percentage of products that contain it
0.4%
Top categories
Moisturizers
Makeup
Cleansers
Position
Predominant list placement
Top 25%
References
CosIng Data
CosIng ID
34693
INCI Name
ISOPROPYL ISOSTEARATE
EC #
 250-651-1 / 269-023-3
All Functions
Binding, Emollient, Skin Conditioning
