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Our database includes 62 products that contain Theanine.


Theanine is an amino acid found in plants and fungal species. Theanine helps hydrate the skin as an emollient and humectant.

Both emollients and humectants help hydrate the skin. Emollients prevent moisture from escaping by creating a thin film on top of the skin. Humectants draw water from the air to your skin.

Fun fact: Theanine gives green tea its special umami flavor.

Theanine is a rare cosmetic ingredient, with about 0.1% of the products in our database containing it.

Where it's used

Theanine is most often found as ingredient number 31 within an ingredient list.

These are the categories of products that use Theanine the most:

CosIng Data

  • CosIng ID: 60286
  • EC #:  221-379-0
  • All Functions: Emollient, Humectant, Skin Conditioning
What is CosIng?

CosIng is the European Commission database for information on cosmetic substances and ingredients.

SkinSort uses CosIng to source some of it's data on ingredient names and functions.