Which hair texture may resist curl formation during perming?

The hair texture that may resist curl formation during perming is very straight or fine hair types. This is due to the inherent structure and properties of fine or straight hair, which can have a smoother cuticle layer and lower porosity. Fine hair may be less able to absorb the perm solution or may not have enough texture to hold a curl effectively. Additionally, straight hair usually lacks the natural wave or curl pattern that can aid in forming a new shape during the perming process.

In contrast, coarse hair types often have a thicker structure that can absorb chemicals better and typically respond well to curling. Curlier hair types already have a more pronounced wave or curl pattern, making them more compatible with styling through perming. Thick hair types can also hold curls effectively as they might have a diverse range of textures and can retain shape after treatment. Therefore, the unique characteristics of very straight or fine hair types contribute to their resistance to curl formation during perming.