PSI Barbering Practice Exam

What typically causes hair to knot, particularly at the ends?

1. Low moisture

2. High protein levels

3. Extremely curly hair

4. Chemical treatments

The correct answer is: Extremely curly hair

Hair knots, especially at the ends, are commonly attributed to the structure and texture of the hair. Extremely curly hair tends to be more prone to tangling due to its configuration. The natural spiral shape of curly hair can make it difficult for the strands to lay flat against each other, leading to friction and entanglement. As curls bend and twist, they can catch on one another, particularly at the ends where the hair is older and potentially drier. While low moisture can contribute to hair becoming dry and more prone to breakage, and chemical treatments can weaken hair leading to tangling, the unique characteristics of extremely curly hair are the primary reason for knots. High protein levels can influence hair's moisture retention or elasticity but are not directly responsible for knots in the same way that the physical structure of curly hair is. Thus, understanding hair texture is crucial when addressing issues of tangling and knots at the ends.