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


INCI: Polyisobutene

What is Polyisobutene?

Polyisobutene is a homopolymer with isobutene monomers, prepared by a polymerization reaction. Depending upon its molecular weight it is used commercially as a plasticizer or adhesive. Low molecular weight polyisobutene is a viscous, soft, semi-liquid. It is used in a wide range of cosmetic products.

Use & Benefits:

Polyisobutene is used as a binder, film-former, and non-aqueous viscosity increasing agent in cosmetic products. As a binding agent, it helps in binding or holding together the ingredients in a cosmetic product in the compressed cake or tablet form of product, for example, a compressed powder or eye shadow. It works as a non-reactive binder, which is a very important characteristic of a binder. As a film-forming agent when applied on the hair or skin, it forms a supple, cohesive, and continuous layer. This layer/film has water-binding properties that leave a silky and smooth effect on the skin. It also functions as a viscosity increasing agent which when used increases the thickness of the solution and that gives ideal or acceptable viscosity to the product that is just right for use. It is well tolerated by the skin or quite mild on the skin.  It is used in formulations of make-up products, hair care, and skincare 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.


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

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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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