Comparative Study for the Evaluation of a New Medical Device Shampoo on the Treatment of Head Lice Infestation

Inclusion Criteria: * Healthy participant, * Female or male participants, * Aged 2 years and above (for participants in arms 1 and 2), * Aged 3 years and above (for participants in arms 3) , * Participants with a slight to moderate lice infestation (According to EU norms: 0, 1, 2) * Participants with various hair types (from 1 to 3C in the hair scale below) and hair length (from short to mid length hair not exceeding shoulder). * Written informed consent for participants ≥18 years or legal guardian for participants \<18 years given freely and expressly before start of the clinical investigation. * Participant/Participant's legal guardian is psychologically able to understand the clinical investigation related information and to give written informed consent. * Participant/participant's legal guardian agreeing to follow the study requirements during the whole clinical investigation period. * Females of childbearing potential and sexually active should use a contraceptive regimen recognized as effective at least 4 weeks before the beginning of the clinical investigation and during the entire clinical investigation. * Female participants of childbearing potential, presenting with negative pregnancy test at inclusion. Exclusion Criteria: * Pregnant or nursing woman or planning a pregnancy during the clinical investigation; * Participant who had been deprived of their freedom by an administrative or legal decision or major participant who is under guardianship; * Participant in…