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

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

TRYPTOPHAN

INCI: Tryptophan

What is Tryptophan?

Tryptophan is a kind of amino acid. Amino acids are the building blocks of proteins and are required for many essential functions in the human body and for the sustenance of life. Tryptophan is an amino acid that can be found in both plants and animals. Tryptophan is not synthesized in the human body, so it must be obtained from natural sources like meat, fish, eggs, dairy products, and other vegetables. It was first isolated by Frederick Hopkins in 1901 from hydrolyzed casein. Many organs in the body require tryptophan to function properly. It is used as a dietary supplement in addition to its use in cosmetic and personal care products. Tryptophan has also been used to help with facial pain, bruxism (tooth grinding), and sports performance.

Use & Benefits:

  • Skin Protection: Tryptophan forms a protective film on the surface of the skin, making it appear smooth and soft.
  • Moisture Retention: It lubricates and prevents moisture loss from the skin.
  • Skin Moisturizing and Conditioning: Tryptophan moisturizes and conditions the skin.
  • Cell Regeneration and Repair: It aids in the regeneration of new cells and repairs damaged cells.
  • Inflammation Reduction: It reduces inflammation of the skin, enhancing its health.
  • Hair Conditioning: Tryptophan conditions the hair, keeping it more hydrated and conditioned.
  • Cosmetic Applications: It is used in compositions of 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.

Questions? 

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. 

  • Copyright ®LESIELLE, ®ADAPTIVE SKINCARE, ISOLATED FORMULATION™
  • All rights reserved 2023

Menu