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

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


INCI: Butylated hydroxy toluene

What is Butylated hydroxy toluene?

It is a fat loving organic compound, a yellow/ white colored, crystalline solid. It is derived from phenol.

Use & Benefits:

It is approved by FDA for food additive but it has also been approved to use in cosmetics by regulatory authorities. It is used as a preservative in cosmetics. Also, it has antioxidant property, which is beneficial in two ways: one, it helps safeguard cosmetic product from deterioration caused by oxygen, and second, it helps skin also to fight against free radicals. It’s mostly used in products like lipstick, foundation, eyeliner, and blush. Also, products like moisturizer, cleanser, and perfume also it in the formulation.

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?

Take our personalized skincare quiz.

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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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