Type 1: Straight Hair
Type 1 hair is straight and typically lacks any curl or wave. It is the most resilient hair type and has a natural shine. Type 1 hair is further classified into three subcategories:
Type 1A: Fine and very thin hair that is prone to oiliness
Type 1B: Medium-textured hair that has more body than Type 1A hair
Coarse and thick hair that is resistant