Talon noir was first described in 1961 by Peachey as atraumatic petechial eruption characteristic of basketball players' heels, and were originally called calcaneal petechiae. It is a dermatosis linked to trauma, with asymptomatic lesions, marked by the presence of blood within the stratum corneum. It presents varied clinical manifestations, with the location depending on the involved provocative fac-tor. The present study describes a case of talon noir in a patient with psoriasis vulgaris and demonstrates the importance of the correlation of clinical, dermoscopic, and histopathological characteristics.

Keywords: BLOOD STAINS, NEVI AND MELANOMAS, FOOT

Introduction: The beauty industry in Brazil ranks third in the world by size, second only to those of the U.S. and Japan. Paradoxically, the vast majority of studies on aesthetic treatments for the skin do not demonstrate a corresponding knowledge of the industry by the relevant population. Contemporary women, with their increasingly strong role in society, are the engine that drives the growth of the beauty and aesthetics industry. Objectives: To obtain data related to the population's knowledge of cosmetic dermatology treatments. Methods: A descriptive, multicentric study was carried out in the Brazilian states of São Paulo, Rio de Janeiro, and Santa Catarina with 600 women between the ages of 18 and 70 years old. Results: The majority of the target population wants to correct skin imperfections, however there is great suspicion about the effectiveness of the treatments available. The dermatologist's practice is not the main source of information for the interested audience. Conclusions: The consumer profile in the beauty market undergoes constant changes and to understand the public's knowledge, concerns, and challenges linked to these issues is key to allowing discussion with, and educating patients about the ever-expanding cosmetic dermatology field.

Keywords: ESTHETICS, BEAUTY CULTURE, LASERS, BOTULINUM TOXINS, SKIN CREAM.