Histidine

Helps attract water.

What it is

An amino acid, one of the building blocks of proteins.

Used as a humectant that helps hold on to moisture, and as a skin conditioning agent.

A short summary from the dictionary, not yet an in-depth article. About these entries

Helps attract waterOfficial EU function: Humectant

Keeps skin in good conditionOfficial EU function: Skin conditioning

Reduces staticOfficial EU function: Antistatic