Trivia: The Andre Walker, Fia, and LOIS systems determine what about hair?
Color
Thickness
Length
Texture
Correct Answer: Texture
So why is this answer correct? : Each of these hair typing systems uses a different method to determine hair texture from straight to coily. Andre Walker uses a numbered system from 1a to 4c (though more textures have since been added to the original system). LOIS uses letters to determine hair type, whereas Fia combines elements of both these systems. Each uses the hair’s appearance, definition, and volume to classify hair type.