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

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


INCI: Xymenynic acid

What is Xymenynic acid?

Xymenynic acid" is a long-chain acetylenic acid. It is also known as "11-octadecen-9-ynoic acid" with a chemical formula of C18H30O2. It occurs naturally in the seed kernels of the Ximenia species and is extracted from the seed kernels of Santalum obtusifolium or sandalwood plant. It is primarily used as an ingredient in cosmetic and personal care products

Use & Benefits:

Emollient: Forms a thin film on the surface of the skin when used, preventing or curing dryness, scaling, or patch development. Fills up gaps between dead cells and cracks, forming a barrier and protecting the skin from allergens, bacteria, and irritants that pass into deeper skin layers leading to acne, eczema, dryness, and itchiness.

Anti-inflammatory: Believed to block the inflammatory pathways in the skin and hinder the inflammation process. Reduces itchiness, redness, and inflammation from the skin. Soothes and calms the skin.

Skin Conditioning Agent: Used in formulations of creams, lotions, gels, shampoos, conditioners, 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.


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