Answer:
Watercolor
Step-by-step explanation:
The drawings done by Frida Kahlo in her sketchbook were often done in the wet medium known as Watercolor. This is a painting method in which the paints are made of pigments suspended in a water-based solution. There are also watercolor pencils which are also water-based and provide a similar output. "Eyesaurus" was one of Frida Kahlo's intimate self-portraits from her sketchbook done in watercolor and can be seen down below.