Allergic Contact Dermatitis
Meaning ❉ Allergic Contact Dermatitis is a delayed immune reaction of the skin to specific substances, often influencing textured hair care practices.
Hair Dye Sensitivity
Meaning ❉ Hair Dye Sensitivity is the body's adverse reaction to hair color ingredients, rooted in biological processes and historical cultural contexts.
PPD Sensitization
Meaning ❉ PPD Sensitization describes an acquired immune system reactivity to para-phenylenediamine, a chemical common in permanent hair dyes.
