Characteristics of Facial Serum from Seaweed Filtrate of Eucheuma cottonii and Ulva lactuca

Abstract

The skin needs antioxidants to counteract free radicals that can originate from air pollution and exposure to ultraviolet rays. Eucheuma cottonii and Ulva lactuca are known to have high antioxidant content. Skincare products, including serums, can be used as an alternative to tackle skin issues by incorporating active ingredients from seaweed. This study aimed to determine the best formulation for the addition of E. cottonii and U. lactuca based on the characteristics of facial serum products using hedonic test parameters, pH, moisture, homogeneity, viscosity, and antioxidant activity.The study's treatments were classified into four categories: serum without the addition of seaweed filtrate (F0), serum with the addition of E. cottonii filtrate (F1), serum with the addition of U. lactuca filtrate (F2), and serum with the combined addition of E. cottonii and U. lactuca filtrate (F3). The method of data analysis employed the Kruskal-Wallis test and one-way ANOVA. The serum product's antioxidant value, hedonic score, homogeneity, pH, viscosity, and moisture can be influenced by the addition of E. cottonii and U. lactuca filtrate. The study results indicate that the most optimal serum formulation was achieved by supplementing with E. cottonii filtrate (F1), exhibiting antioxidant activity (IC50 ) of 299.29 µg/ml, moisture of 58.42%, pH of 6.25, and viscosity of 276.71 cP. Moreover, this formulation was favored most by the panellists based on parameters such as appearance, color, odor, texture, and homogeneity.