Why is it important to know the pH of hair products?

Knowing the pH of hair products is crucial because the pH level can significantly influence how the product interacts with different hair types. Hair, being slightly acidic with a natural pH of around 4.5 to 5.5, means that products with a similar pH can help maintain the hair's health and structure. For example, using a product with too high a pH can cause the hair cuticle to lift, leading to dryness, frizz, and damage, particularly in already textured or chemically treated hair.

Selecting products with the appropriate pH for specific hair types allows for better alignment with the hair's natural condition, promoting enhanced manageability, shine, and overall health. Thus, this understanding enables a barber or stylist to provide tailored recommendations for clients based on their unique hair needs and conditions.