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

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


INCI: Methionine

What is Methionine?

Methionine is an essential amino acid containing Sulphur. An essential amino acid is one that cannot be synthesized in our body and hence have to obtain from food. It is a very important starter for other molecules required to carry out the metabolic functioning of various biochemical reactions within the body. 

Use & Benefits:

An amino acid as the name suggests, has amino (basic) and acidic groups both in its structure. So, it can make temporary bonds with other ingredients present in the skin as well as with molecules present on the skin surface proteins. As we age, we need more amino acids to make body function regularly. When it is applied on the skin or hair, it forms a layer on the skin, which not only protects the skin but does not let moisture evaporate and thus act as a conditioner for skin and hair. It improves the tone and elasticity of the skin. It also promotes the growth of healthy hair and strengthens nails. It is used as an essential skin-replenishing agent. It is also used in baby products, bath products, and cleansing 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.


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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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