Glam Up for 2026: Rock the South Carolina Cosmetology Exam!

Fine hair is the most susceptible to damage from chemical processes due to its structure and reduced strength compared to other hair types. It has a smaller diameter and thinner cuticle layers, making it more vulnerable to breakage and damage from treatments such as coloring, perming, or relaxing. These chemical processes alter the protein structure and moisture balance of the hair, and fine hair tends to absorb products more readily, leading to increased risk of damage.

In contrast, coarse hair, while it may also experience damage, often possesses a thicker cuticle and greater resilience, allowing it to better withstand chemical treatments. Curly hair can be more resilient in some reactions because its structure tends to hold products more effectively and has natural oils that can offer some protection. Medium hair falls between coarse and fine hair in terms of resilience but still isn’t as prone to damage as fine hair. Understanding these differences is crucial when assessing the risks of chemical processes on various hair types.