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INCI: PEG-100 Stearate

What is PEG-100 Stearate?

PEG-100 Stearate is an ester of polyethylene glycol and stearic acid. Stearic acid occurs naturally in many oils like palm and coconut oil. The number with PEG denotes the number of monomer units attached in the chain. PEG-100 Stearate is a soft, waxy solid that is white to tan in color.

Use & Benefits:

PEG-100 Stearate is used as an emollient, emulsifier, and surfactant in many cosmetic products. PEG is water-loving in nature and stearic acid is oil-loving. So, when they combine, they make a good surfactant or emulsifier. That’s the reason PEG-100 stearate gives stability to the product and prevents the oil and water-based components of the product from getting separated. As a surfactant, it helps the dirt particles trapped on the skin with oil to get mixed with water, so that it gets away rinsed easily with water. When used on skin it forms a thin layer forming a barrier. It protects the skin from moisture loss and other external factors. It is also known to increase the water retention capacity of the skin and makes it softer and healthier. It also conditions hair and makes them appear soft and silky. It is used in formulations of creams, lotions, shampoos, conditioners, bath products, cleansers, and other skin and hair care products.

Personalized & Adaptive skincare system

Create your own custom skincare and  adapt it to your skin changes

How to create your own Personalized Skincare with Lesielle?

Icons of the lesielle custom skin care system

Step 1: Select a nourishing base compatible with your skin, and your desired moisturization level

Step 2: Complete your treatment with up to four active ingredients for consistent and occasional use.

Step 3: Insert your base and up to four actives ingredients into your Lesielle device to produce a fresh single dose of face cream on demand when you need it.

Complete your routine with a cleanser and other complimentary products and accessories.


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The skincare system for an ever evolving skin, using recognized active ingredients with scientifically proven efficacy to create treatment tailored to each day's State of Skin. 

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