NOCTI Cosmetology Practice Exam 2025 – All-in-One Guide to Master Your Certification!

A fish-hooked end curl for croquignole curling typically occurs when some hair strands are not fully encompassed within the curling iron during the curling process. This means that the ends of the hair are not properly wrapped around the iron, leading to a bent or "fish-hooked" appearance rather than a smooth, uniform curl. Ensuring that each strand is fully secured in the curling iron is crucial for achieving the desired curl shape and avoiding this common mistake. When all hair is adequately caught, the result should be a smooth curl without any irregular shapes at the ends.

The other options present different issues that do not directly lead to a fish-hooked end. For instance, overheating the rods can damage hair but does not cause the specific curling issue described. Using the wrong size iron may result in curls that are too tight or too loose, but wouldn’t specifically create a fish-hook effect. Applying too much product could weigh the hair down or create buildup but is not directly linked to the fish-hook appearance.