The use of hair dyes is an essential part of beauty care for many women. A new hairstyle or color often symbolizes a new beginning, providing an opportunity for renewal. However, the application of hair dyes is not always without risks. Allergic reactions, such as itching, burning sensations, red rashes, or even hair loss, can occur in many cases. These symptoms can appear not only when trying new products but also when using dyes that have been used for years. Proper investigation can help prevent future problems. Today’s hair dyes contain many compounds that can cause allergic reactions, so users should always choose carefully. Allergic skin reactions not only cause…