Evaluation of the Efficacy of a New Supplement for Hair and Nails - in Vitro, Clinical, Subjective and Instrumental Study

Inclusion Criteria: * Phototype (Fitzpatrick): I to VI. * Have intact skin in the test region: scalp. * Present a clinical diagnosis of telogen effluvium. * Agree to adhere to the study procedures and requirements: study time, returns (D-3, D0, D45, D48,D90 and D93) to the laboratory to carry out the study procedures, administration of the product research, fill the use diary, fill the perceived efficacy questionnaire, carrying out the collection of hair samples (hair cut, close to the scalp - beginning of the study and after 90 days), not change hair habits during the study period. * Agree not to carry out chemical hair treatments (hair coloring, straightening, among others) and/or treatment to control/reduce hair loss and/or dandruff, among others, until the end of the study (90 days). * Agree with the procedure for collecting hair samples: trichogram and hair cut, close to the leather hairy. * Agree to administer 01 capsule/day of the investigational product. Present a minimum length of hair (3 cm) to carry out the procedure for collecting samples of hair * Present hair and brittleness for at least 3 months before the start of the study. * Signature of the Free and Informed Consent Term (TCLE). Exclusion Criteria: * Pregnancy * During the course of the study, the subject develops symptoms of COVID-19, such as: fever (temperature above 37.5°C), cough; dyspnoea (difficulty breathing characterized by rapid, short breaths, usually associated with heart or lung disease); mya…