What can be a sign of an allergic reaction to hair products?

Itching and redness are common signs of an allergic reaction to hair products. When the skin is exposed to allergens present in shampoos, conditioners, dyes, or styling products, the body's immune response can trigger inflammation. This often manifests as itchiness and redness in the areas where the product was applied. These symptoms indicate that the skin is reacting to the chemical components of the product and may require discontinuation of use and possibly consultation with a healthcare professional.

Dryness may occur due to various factors but is not specifically indicative of an allergic reaction. Softness and shininess are typically desirable effects of hair products and do not relate to adverse reactions. Recognizing signs like itching and redness can help individuals identify potential allergies and avoid further exposure to irritants.