Ace the Michigan Cosmetology Exam 2026 – Style Your Way to Success!

The pH level of hair products plays a vital role in their interaction with the hair's structural integrity and the effectiveness of various treatments. Hair is composed of a protein called keratin, which is sensitive to changes in pH. When the pH is balanced, typically between 4.5 and 5.5, hair maintains its natural barrier, elasticity, and overall health.

If a product has a high pH (alkaline), it can raise the cuticle layer of the hair, making it more porous and prone to damage. This can lead to problems like frizz, breakage, and color fading. Conversely, if a product is too acidic, it may not provide the necessary cleansing or conditioning properties, and the treatment results might not be effective.

Thus, the pH influences how products perform, how well they can penetrate the hair shaft, and ultimately, the results of any chemical treatments or styling products used. Understanding this relationship is crucial for cosmetologists to ensure they use the right products for specific hair types and desired outcomes.