Objectives: The aim of the study was to assess the efficacy of 5% hyaluronic acid crem for the treatment of seborrheic dermatitis of the face. Materials and methods: A total of 49 patients (28 men and 21 women, age from 31 to 64 years) with seborrheic dermatitis of the face were selected for the study. A single-site, prospective observational study of 5% hyaluronic acid cream for the treatment of facial seborrheic dermatitis was conducted from 2016 to 2020. All patients underwent a thorough clinical examination according to the generally accepted scheme. Treatment planning includes a thorough history and physical examination, preoperative laboratory examination. At each visit, degrees of scale, erythema, and pruritus were evaluated. To assess the effectiveness of patients were given a questionnaire to fill out the questions. The questionnaire evaluated the 5% hyaluronic acid crem effectiveness of the treatment. Outcome was the evolution of the Investigator Global Assessment (IGA) scale, assessing erythema, scale / scaling, seborrhea and pruritus, all measured on a five-point scale, from 0: no signs / symptoms to 4: very severe sign / symptom. Subjects were assessed at baseline after 4 and 8 weeks. Results: Baseline IGA scores (mean ± SD) were 9 ± 3 (range: 5-13). The use of the EDS significantly reduced the IGA score by 67% at 4 week and by 83% at 8 week. The condition improved from baseline in 92.3% of subjects. Conclusion: 5% hyaluronic acid crem has been effective in reducing erythema, scales, seborrhea, and itching. No local side effects were reported.