Background and Design: Skin care includes the use of cleaning and cosmetic products (nourishing, moisturizing, sunscreen, etc.) that are specially prepared for different skin types. In our study, we aimed to determine the knowledge and behaviors about skin care and moisturizers in patients attending dermatology outpatient clinics. Materials and Methods: Patients, who attended our dermatology outpatient clinic for any reason between March 2013 and May 2013, were requested to fill out a questionnaire containing questions about their knowledge of skin care products and moisturizers and how to use them, using behaviors, where they get knowledge about them, what are the things they consider when choosing them, whom they ask for advice for these products, where they buy these products, and what are the things they consider when buying them. Results: The study involved 984 patients. 608 (61.8%) were female, 376 (38.2%) were male. 474 (48.2%) patients defined skin care as cleaning, (34.2%) 337 patients as lack of skin disease. 303 (30.8%) patients knew one skin care product, 213 (21.6%) - two skin care products, 284 (28.9%) - more products, and 184 (18.7%) patients had no idea. 528 (53.7%) patients were using skin products, 200 of them were using regularly and 328 were using sometimes. 456 (46.3%) patients were not using any skin care product. 648 (65.9%) subjects stated that they get information from dermatologists, 154 (15.7%) - via internet, 106 (10.8%) - via advertisements, 37 (3.8%) - from neighbors, and 39 (4%) subjects stated that they get information from pharmacy when choosing skin care products. 300 (30.5%) patients were regularly using moisturizers, 340 (34.6%) patients were using sometimes, 344 (35%) were not using moisturizers. Conclusion: Our patients did not have the behavior of using skin care products regularly. Our society needs to be informed about regular skin care, and choosing the right moisturizers, buying these products from appropriate places as well as using these products correctly.