
Scalp Sensitization
Meaning ❉ Scalp sensitization describes a heightened skin reactivity to irritants or allergens, often influenced by historical hair practices and textured hair physiology.

Sensitization Pathways
Meaning ❉ Sensitization Pathways describe how textured hair and scalp, through biological and historical processes, learn to respond to stimuli.

Skin Sensitization
Meaning ❉ Skin sensitization describes the immune system's learned allergic response to a substance, influencing diverse hair care experiences and historical practices.

Allergic Skin Response
Meaning ❉ Allergic Skin Response signifies the skin's immune reaction to specific substances, a concept deeply intertwined with textured hair heritage and care practices.

PPD Sensitization
Meaning ❉ PPD Sensitization describes an acquired immune system reactivity to para-phenylenediamine, a chemical common in permanent hair dyes.
