Keratosis

Keratosis refers to an abnormally thick buildup of cells in the outer layer of the skin (epidermis), typically caused by an overproduction of keratinocytes. Keratinocytes are the predominant cells in the epidermis, and their primary function is to produce keratin, a...

Kojic acid

Kojic acid is a naturally occurring compound that is produced by a type of fungus called Aspergillus oryzae. It is also found in some foods, such as sake, soy sauce, and tempeh. Kojic acid has been used for centuries in traditional Asian medicine for a variety of...