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


INCI: Alteromonas Ferment Extract

What is Alteromonas Ferment Extract?

Alteromonas Ferment Extract is an extract of the fermentation product of gram-negative extremophile bacteria, Alteromonasmacleodii, a resident of a deep sea. It is a polysaccharide and can hold a good amount of water.

Use & Benefits:

It has natural anti-inflammatory properties so helps improve rosacea, minimizes the sensitivity of skin, and soothes the skin. It is just like a polysaccharide, so it improves hydration of the skin and makes skin supple. It also rejuvenates the skin cells.

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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