Background: The Middle East and North Africa region, including Lebanon, is well known for its excessive cosmetics expenditure. While the use of beauty products is increasing, it is unclear if customers are aware of the products’ safety and proper use. Objective: To explore Lebanese women’s knowledge and attitudes toward cosmetics use. Methods: A cross-sectional study was conducted from January to May 2021 among a sample of adult Lebanese women. Data were collected using an electronic questionnaire divided into 3 sections (sociodemographic characteristics, cosmetics knowledge, and attitude) and shared via social media platforms. Knowledge and attitude scores were then calculated. Descriptive and regression analysis was performed using Statistical Package for the Social Sciences. P value < .05 was considered statistically significant. Results: A total of 1,051 females completed the survey, and the age range of the majority 744 (70.8%) was between 18 and 20 years. The mean score of participants’ knowledge was 7.54 ± 2.7 (range 0–14) with 658 (62.6%) of the respondents being knowledgeable about cosmetics. The study sample exhibited an overall positive attitude toward cosmetics. A significant association was observed between the area of residency and monthly income of respondents and their knowledge toward cosmetic products (P < .001). Limitations: The self-administered questionnaire may have resulted in information bias and it targeted only those having internet access, and the age group 18 to 20 years was overrepresented. Conclusion: The study sample demonstrated a good level of knowledge as well as a positive attitude toward cosmetics. However, raising awareness on the acute and chronic side effects of cosmetics is warranted.

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