Utilisation des algues marines dans le domaine de thalassothérapie préparation d’un Shampooing et gel douche

Abstract

Marine algae, rich in bioactive compounds such as minerals, vitamins, amino acids, polysaccharides, and antioxidants, show great potential in cosmetics thanks to their moisturizing, purifying, anti-inflammatory, and blood circulation-stimulating properties. This work aims to formulate two natural cosmetic products: a shampoo and a shower gel based on brown marine algae, specifically Rugulopterix okamuraea and Fucus vesiculosus. The active ingredients were extracted after cleaning and drying the algae, then incorporated into cosmetic formulations with other natural ingredients, including fragrances from aromatic plants and plant-based surfactants. A preliminary evaluation was conducted on the physicochemical (pH, texture, foam, odor) and microbiological characteristics of the final products. The results showed a pH between 6.1 and 6.4, which complies with cosmetic standards, along with an improvement in texture and foam thanks to the algae extracts. These formulations provide a refreshing sensation and promote skin and hair hydration, confirming their relevance for thalassotherapy treatments. This project is part of a sustainable cosmetics approach, enhancing local marine resources while meeting consumer expectations for natural, effective, and environmentally friendly products.