A nozzle for a hair care device comprises a plurality of diffuser tips for applying IR radiation to a scalp (S) of a user. The diffuser tips have an air outlet (AO) for blowing hair (H) aside to reduce absorption of the IR radiation by the hair (H). Preferably, the diffuser tips each have a light guide (LG) for guiding the IR radiation through the diffuser tip. Preferably, each diffuser tip is provided with an IR LED for generating IR radiation at an intensity not exceeding 15 mW/cm2. Preferably, the intensity does not exceed 10 mW/cm2. The invention also relates to a hair care device comprising such a nozzle.
