Background Acne vulgaris (AV) may affect external appearance and significantly deteriorate the quality of life of patients. Therefore, patients make various inquiries about their disease and seek treatment options. Aims To investigate the social media usage habits of patients with AV concerning their diseases, and their recommendations for dermatologists related to social media use. Methods A total of 1609 patients with AV completed the survey prepared by the authors and the Cardiff Acne Disability Index questionnaire. The Food and Drug Administration severity scores and clinical information of the patients were noted by their physicians. Results Of the 1,489 patients who stated that they used social media, 46.31% regularly and 28.77% sometimes referred to these sources to make inquiries about AV. Social media usage for AV was statistically significantly higher in women, participants with short term and severe disease, those with a moderate income level, and those using topical treatment and cosmetics. They mostly used Google (67%), Instagram (54%), and YouTube (49%). While 76% of the participants stated that they did not share what they saw on the Internet with their doctor. Of the respondents, 18.5% were trying to contact their dermatologists through the Internet, and 69.73% would prefer experts such as dermatologists to post–AV‐related content. Conclusions Our study shows that patients frequently resort to social media to seek information about AV. In the changing digital world order, it is observed that there is a need for dermatologists to use social media more actively to share accurate information about AV.

Aim Impairment of biotin metabolism with the use of isotretinoin and the mucocutaneous side effects observed in patients using isotretinoin suggests that they are a result of decreased enzyme activity. We aimed to determine the pattern of skin and hair changes in patients with acne receiving isotretinoin and how these changes were affected by biotin added to the treatment. Materials and methods Sixty patients were divided into two groups. Each group contained 30 patients. Groups A and B received 0.5 mg/kg/day isotretinoin, and 10 mg/day biotin supplement was added to Group B. Both groups were evaluated using a digital dermoscope for hair changes and with a DermaLab® Combo device for transepidermal water loss (TEWL), skin retraction, skin hydration, and skin sebum levels at the beginning and end of the fourth month. Results In group B, the anagen hair ratio increased (P = 0.034) and the telogen hair ratio decreased significantly (P = 0.003). Skin sebum and the skin retraction values decreased in both groups. Skin hydration decreased significantly in group A (P = 0.001), but there was no significant decrease in group B (P = 0.43). Conclusion Biotin (10 mg/day) given in addition to isotretinoin treatment decreased telogen and increased anagen hair rates and helped to maintain skin hydration. The use of 10 mg/day biotin can prevent the mucocutaneous adverse effects of isotretinoin treatment.

Background Skincare products and cosmetic procedures are used as an adjunct or complementary to conventional drug therapy for acne vulgaris (AV). Objective To evaluate the use of skincare products and the frequency of cosmetic procedures in AV treatment. Methods A total of 1,755 patients with AV completed the survey prepared by the researchers and the Cardiff Acne Disability Index (CADI) questionnaire. The clinical findings and the Food and Drug Administration (FDA) severity scores were recorded by the dermatologists. Results For AV, 66.7% of the patients stated that they used skincare products and 26.7% had undergone cosmetic procedures. The use of skincare products was statistically significantly higher in women (female: 74.5%, male: 57.7%, p < 0.0001); older people (users: 22 ± 7.6years, non‐users: 21.2 ± 5.7 years, p < 0.0001); patients with a higher CADI score (users: 7 ± 3.7, non‐users: 6.9 ± 4.3, p = 0.010); FDA severity score 2 and 3 (FDA‐1: 58.1%; FDA‐2: 72.4%, FDA‐3: 73%, FDA‐4: 67%, p < 0.0001); long‐term disease (users: 57 ± 43 months; non‐users: 47.7 ± 42.3 months, p < 0.0001); facial involvement (present: 70.2%, absent: 51.4%, p = 0.017); high income levels (users: 73.5%; non‐users: 26.5%, p = 0.001); and graduate or post‐graduate degrees (undergraduate≤%62.8, graduate≥%76.8, p < 0.0001). The rate of cosmetic procedures was higher in those with higher CADI scores (users: 7.8 ± 3.8; non‐users: 7.1 ± 3.96, p < 0.0001); older patients (users: 22.7 ± 10.7 years; non‐users: 21.3 ± 5 years, p < 0.0001); high school (25.6%); and graduate (28.9%) education (p = 0.043), those with lower disease severity (FDA‐1: 31.1%; FDA‐2: 28.5%, FDA‐3: 27.1%, FDA‐4: 20.4%, p = 0.022); smokers (smokers: 32.5%; non‐smokers: 25.5%, p = 0.020), and those with AV in the family (present: 29.8%; absent: 24.2%, p = 0.009). The patients most frequently used cleansers (85.2%) as cosmetic products, and most commonly underwent skincare treatment (71%) as an interventional procedure. They mostly learned about such products and methods from the Internet, and 33.3% of the participants had undergone procedures performed by non‐physicians. Conclusion The patients generally choose skincare products as a result of their Internet search and sometimes have these procedures performed by non‐physicians. Dermatologists should be aware of this situation and inform their patients about appropriate products and procedures.

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