Ingredient

PEG-100 Stearate

Emulsifier and surfactant commonly used in moisturizers and cleansers.

PEG-100 stearate is an ethoxylated ester of stearic acid that functions as a mild emulsifier and emollient, producing light, non-greasy creams. The high ethoxylation level reduces irritation and comedogenicity compared to lower PEG numbers.

Also known as

Polyethylene glycol 100 monostearatePEG 100 stearateEthoxylated stearic acid

Categories

emulsifieremollient

Comedogenic score: 1/5

Pore Clogging

Low concern

PEG-100 Stearate has a low comedogenic rating and is unlikely to clog pores.

Fungal Acne

Higher concern

PEG-100 Stearate can feed Malassezia yeast and may trigger or worsen fungal acne. Reason: fatty acid ester that feeds Malassezia yeast.

Pregnancy

Low concern

PEG-100 Stearate is generally considered safe during pregnancy.

Irritation

Low concern

PEG-100 Stearate has a low irritation potential and is well tolerated by most skin types.

Common Questions

What is PEG-100 Stearate used for?
Emulsifier and surfactant commonly used in moisturizers and cleansers.
Can PEG-100 Stearate clog pores?
PEG-100 Stearate has a low comedogenic rating and is unlikely to clog pores.
Is PEG-100 Stearate fungal acne safe?
PEG-100 Stearate can feed Malassezia yeast and may trigger or worsen fungal acne.
Is PEG-100 Stearate commonly irritating?
PEG-100 Stearate has a low irritation potential and is well tolerated by most skin types.

Educational purposes only. Always consult a dermatologist for personalised guidance.