Clinical Study to Evaluate Effect of Shampoo in Subjects With Hair Loss.

Inclusion Criteria: * Sex: Both (50% women; 50% men). * Age: 18-65 years. * Subjects with hair loss due to telogen effluvium or mild or incipient androgenic alopecia, in an 80/20 ratio. * Degree of androgenic alopecia: Ludwig scale score I-II for women and Hamilton-Norwood scale score III-II for men. * Telogen effluvium: Combing test. * Subjects with all hair types (oily, combination, sensitive, etc.). * Subjects with all scalp types (normal, sensitive, etc.). * Agree to participate voluntarily in the study and provide written informed consent. * Adequate level of understanding of the clinical study. * Good health (physical and mental). * Availability to attend visits to the research centres. * No application of any product to the experimental area on the first day of the trial. Exclusion Criteria: * Individuals under 18 years of age. * Pregnant or breastfeeding women. * Injuries or infection in the test area. * History of allergies to cosmetic products. * Known allergies to product components. * Sensitivity to any product component. * Patients who have undergone recent surgery or treatments in the study area. * Cancer patients. * Volunteers currently taking antibiotics, antihistamines, corticosteroids, beta-blockers, retinoids, azelaic acid, or acne therapies, or whose treatment ended within 15 days prior to the start of the study. Participation in another clinical study. * Use of or having used cosmetic products and/or oral or topical treatments for hair loss for at least 6 months. * Hair cutting or dyeing during the study. * Health problems, to be assessed by the specialist, that may compromise adherence to the study protocol.