What is the term used to describe the process when hair contracts or lifts due to moisture loss or drying?

The term used to describe the process when hair contracts or lifts due to moisture loss or drying is known as shrinkage. This phenomenon occurs primarily in curly and coily hair types, where the strands can appear shorter when dry compared to when they are wet due to the loss of moisture. As the hair dries, it tends to retract its length because the natural curls tighten.

Frizzing, on the other hand, refers to the appearance of hair that looks rough or fuzzy, often resulting from damage or humidity, but it does not specifically refer to the contraction of hair length due to drying. Pulling can relate to various actions involving hair but does not pertain to the specific process of moisture loss. Fading typically refers to the diminishing color of dyed hair, which is entirely different from the physical contraction related to moisture changes. Thus, shrinkage is the accurate term that captures the essence of how hair reacts to moisture loss.