The World's Leading Skincare Glossary, brought to you by Lesielle

The 1st Customized Skincare System that Adapts to YOUR Changing Needs


INCI: Polysilicone-11

What is Polysilicone-11?

Polysilicone -11 is a synthetic cross-linked siloxane. It is formed via reacting vinyl terminated siloxane and methyl hydroxyl dimethyl siloxane. In physical form,  it is a clear, viscous liquid.

Use & Benefits:

Polysilicone-11 functions as a film-forming agent in cosmetic products. Silicones are unique in structure since they have spaces in between the molecules, which enables them to form a film on the surface of the skin when used topically. This film serves two purposes:  first, it allows the water molecules to attach to it and makes them available for the skin. Second, it protects the skin by not allowing irritating molecules to pass through. This film protects the skin from dehydrating by loss of moisture. This property is particularly helpful for dry to very dry skin. Properly moisturized skin is inevitable for healthier skin. Since if the skin is dry it can get irritated and redness even with the smallest amount of irritants. So when used in a product, it hydrates and conditions the skin. It is also known to reduce redness and itchiness from the skin. It gives a smooth and silky feel to the skin. It is used in formulations of sun care products, make-up, hair, and skincare products.

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.


Don't you know what Base and Actives your skin needs?

Take our personalized skincare quiz.

Notice: the information collected here is limited in terms of use and scope. See terms and conditions.

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. 

  • All rights reserved 2023