Porównanie skuteczności nawilżenia skóry po zastosowaniu kremów na bazie oleju z wiesiołka i na bazie oleju arganowego

Introduction. Plant oils are valued ingredients of the oil phase of cosmetics. Argan oil is a semi-drying oil and is composed mainly of unsaturated fatty acids. It also contains saturated fatty acids and antioxidants such as tocopherols and polyphenols, among others. Evening primrose oil is rich in UFA and GLA. It is also a source of vitamins, zinc, calcium, magnesium and selenium. Skin has a protective role in the human body. The quality of its function depends on the level of hydration, among other aspects. Appropriate hydration is achieved with suitable skin care products, including natural oil-based emulsions. Aim. The aim of the study was to compare the efficacy of skin hydration for two cosmetic products: argan oil cream and evening primrose oil cream. Material and methods. The studied cosmetic products were assessed in terms of their sensory properties and qualitative composition based on information published at https://ec.europa.eu/growth/sectors/cosmetics/cosing_pl and guidelines included in the Regulation No 1223/2009. Corneometry was used to assess skin hydration and videodermatoscopy was performed. A tester applied a cream on herself for three weeks. Corneometry was performed once a week and videodermatoscopy was performed every day. Results. Corneometry assessment of evening primrose oil cream and argan oil cream indicated a significant increase in skin hydration following the use of the former. The hydration level of the skin of the hands was much lower than that of the face. The left side of the face was less hydrated than the right one. The hydration levels for both hands before and after the study were similar. Conclusions. The study demonstrated a significant impact of the cream used on the level of skin hydration. The evening primrose oil cream turned out to have strong hydrating properties. Despite unfavourable rheological characteristics, the cream did not display comedogenicity.