Introduction: Overexposure of the skin to the sunlight can cause photoaging and promote the emergence of malignant neoplasms. Sunscreens are used to prevent these alterations and may occasionally cause adverse reactions in children and adults.
Objective: To analyze the frequency and types of adverse reactions caused by sunscreens in adults and children.
Methods: Data analysis of in vivo, non-invasive clinical studies performed at a clinical research institute.
Results: Data from 2,263 adults and 523 children were evaluated, with 13.92% and 4.44%, respectively, presenting some type of reaction.
Conclusions: Sunscreens are effective in preventing photoaging and skin cancer. Cosmetic formulations containing sunscreens may cause adverse reactions with low prevalence.

Keywords: SUNSCREENING AGENTS; CONTROL AND SANITARY SUPERVISION OF COSMETICS; SUN PROTECTION FACTOR; COSMETICS

Introduction: Currently there is a growing demand for non-invasive therapies aimed at treating facial aging. Non-ablative fractional lasers lead to excellent outcomes, with reduced side effects. Objective: To evaluate the facial rejuvenation achieved by 1,340nm non-ablative fractional laser using a single pass at high energy versus three passes at medium energy, through a prospective comparative study. Methods: Twenty patients with facial aging were treated with 2 or 3 laser sessions with 4-week intervals. The right hemiface was treated with three passes of 1,340nm non-ablative fractional laser at a fluence of 90 mJ, pulse duration of 5ms and 100 mtz/ cm2. The left hemiface was treated with a single pass of the same laser at a fluence of 120 mJ, pulse duration of 5ms and 100 mtz/cm2. The evaluated variables were spots, wrinkles, porphyrins and overall appearance. Results: The patients (n = 20) were evaluated during 6 to 24 months. The photographic evaluations demonstrated a significant improvement of the spots on the right hand side and wrinkles on the right and left hand sides. Eighteen of the 20 patients reported satisfaction with the treatment. Conclusion: 1,340nm non-ablative fractional laser was proven as a modern, safe and effective alternative for facial rejuvenation. For spots, the triple passes at medium energy protocol led to a superior response. However, regarding wrinkles there was no difference between the single pass at high energy and triple pass at medium energy protocols.

Keywords: LASER; REJUVENATION; FACIAL AGING; FACE

Some cosmetics manufacturers have sought to employ ecologically correct manufacturing processes and use ingredients sourced from biodiversity. The present paper introduces a scientific review for professionals who prescribe such products. The bibliographic survey was performed using databases and keyword searches. Cosmetic products can be conventional, natural or organic. Those classified as natural contain ingredients of natural origin, while a great part of the raw materials used in organic ones must be certified as organic. Labels indicate the type of ingredients used in natural and organic formulations, however there is no standardization, meaning that prescribers should have sound conceptual knowledge on the subject.

Keywords: Control and sanitary supervision of cosmetics; Cosmetics; Cosmetic industry; Cosmetic labeling