What are the two main categories of hair color products?

The classification of hair color products into temporary and permanent is based on how long the product can last in the hair and how it interacts with the hair structure. Temporary hair color products are designed for short-term use; they coat the hair shaft and can be easily washed out with shampoo. This makes them suitable for those who want to experiment with different colors without a long-term commitment, as they usually last only until the next wash.

Permanent hair color products, on the other hand, involve a chemical process that penetrates the hair shaft and alters its structure, resulting in long-lasting color that cannot be washed out. This type of hair color is ideal for individuals seeking a more enduring change or complete gray coverage.

Understanding these two categories is crucial for cosmetologists as it guides their recommendations based on clients' preferences and needs, ensuring that they achieve the desired results effectively and safely.