Frizz is hair that does not align with the surrounding hair, but stands up or curls independently, creating a fuzzy or irregular texture. The three main causes of frizz are genetics, hair damage, and
The hair cuticle is the outermost part of the hair shaft. It is formed from dead cells, overlapping in layers, which form scales that strengthen and protect the hair shaft.
Comparison of sheep (top) and human (bottom) hairs with different cuticle textures