Skin Wrinkles Improvement Effect for Jeju Aloe arborescens Oil Isolated from Supercritical Fluid Extraction

Purpose: In this study, the cytotoxicity and antioxidant effects of Aloe arborescens oil isolated from supercritical fluid extraction were confirmed, and an aloe oil cream was manufactured to evaluate the skin wrinkle improvement effect. Thus, we provided scientific evidence for functional cosmetic ingredients.Methods: Aloe oil was extracted from Jeju Aloe arborescens using a supercritical fluid extraction method. Aloe oil chromaticity and fatty acid analysis were determined. MTT assay and DPPH radical scavenging activity were used to assess the cell viability and antioxidant effect of NIH-3T3, HaCaT, and B16F10 cells. Additionally, we evaluated the effect of an aloe-containing cream on skin wrinkle improvement on 22 adult women 40–60 years of age.Results: Aloe oil extracted from Aloe arborescens using supercritical fluid extraction contained 0.02 g of fatty acid per 100 g, which included behenic, palmitic, α-linolenic, oleic, linoleic, and elaidic acids. The L value was 12.46±2.15, the a value was 3.73±0.26, the b value was 10.35±0.51, and the ΔE was 81.4 as a result of chromaticity. The cell viability of NIH-3T3, HaCaT, and B16F10 cells showed low cytotoxicity up to a concentration of 100 μg/mL. Aloe oil outperformed aloe supercritical extract in terms of DPPH radical scavenging activity. According to the results of a skin wrinkle improvement efficacy test, a cream containing aloe oil has a significantly high skin wrinkle improvement effect.Conclusion: We discovered that aloe oil isolated from supercritical fluid extraction has a strong antioxidant effect and significantly improves skin wrinkles.