An amino acid derived from green tea extract. It has humectant properties, retains water to the skin’s surface, and offers additional soothing and immunomodulatory benefits.
Moisturizing
Humectant
Moisturizing (Humectant)
Humectants are moisturizing ingredients that draw moisture to the skin, either from deeper layers or from the environment (when it's humid).
Humectant
Moisturizing (Humectant)
Humectants are moisturizing ingredients that draw moisture to the skin, either from deeper layers or from the environment (when it's humid).
Soothing
Soothing
Soothing ingredients reduce the signs of sensitivity in irritated and inflamed skin. This includes anti-inflammatory ingredients, anti-itch agents, and topical analgesics.
Soothing
Soothing ingredients reduce the signs of sensitivity in irritated and inflamed skin. This includes anti-inflammatory ingredients, anti-itch agents, and topical analgesics.
Other functions
Emollient
Emollient
Emollients fill the micro-cracks in the skin and leave it feeling soft and pleasant to the touch. Emollients are often mistakenly perceived as moisturizing ingredients.
Emollient
Emollient
Emollients fill the micro-cracks in the skin and leave it feeling soft and pleasant to the touch. Emollients are often mistakenly perceived as moisturizing ingredients.
Origin
Botanical
Botanical
Ingredients derived from plants, mosses, and lichens: extracts, oils, powders, juices and other types of processed plant materials.
Botanical
Botanical
Ingredients derived from plants, mosses, and lichens: extracts, oils, powders, juices and other types of processed plant materials.
Theanine is the most abundant plant-based amino acid in tea extract (it doesn't exist in the human body and is not used for protein synthesis). Similar to other amino acids, it has water-retaining properties and is used as a humectant moisturizing ingredient.
Additionally, a recent study showed that it also has good soothing and immunomodulatory properties.
Science
1
Zeng, W. J., et al. (2018). Topical delivery of l-theanine ameliorates TPA-induced acute skin inflammation via downregulating endothelial PECAM-1 and neutrophil infiltration and activation. Chemico-biological interactions, 284, 69–79.
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Humectant
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