Harnessing Rosemary for Beauty: Phytochemistry and Cosmeceutical Applications

A Review of Literature In this present literature review, the significance of rosemary extract (Salvia rosmarinus) in herbal cosmeceuticals has been discussed, especially with reference to the phytochemistry of rosemary extract, its isolation, pharmacology, application, and regulation. Rosemary extract contains various bioactive molecules. The bioactive components of rosemary extract consist of phenols, rosmarinic acid, carnosic acid, and carnosol, volatile oil, 1,8-cineole (eucalyptol), α-pinene, camphene, borneol, and limonene, flavones, luteolin, and apigenin, and triterpenes, ursolic acid, oleanolic acid, and betulinic acid. The mentioned phytochemicals play an essential role in its therapeutic efficacy. Various extraction methods like steam distillation, solvent extraction, and supercritical fluid extraction are used in the separation and stabilization of these phytochemicals. These phytochemicals' extraction process determines their yield and biological properties. Rosemary extract's therapeutic activity is determined by its potent anti-inflammatory, antimicrobial, and antioxidant activity. Moreover, it prevents the impact of ultraviolet radiation on skin health and is significantly important in anti-ageing as well, as lower wrinkles on the skin increase its elasticity. Extraction of rosemary is extensively employed in the cosmetics industry due to it wide range of applications.The rosemary extract is applied in creams and sunscreens for skin care, it is included in shampoos, conditioners, and hair oil for hair care, and toothpaste, gel, and mouthwash for oral care. According to FDA in the United States, the rosemary extract is declared to be safe. According to EU, rosemary extract is used as an additive in foods (E392). According to FSSAI in India, rosemary extract is allowed to use in cosmetics as an antioxidant. In general, through this literature review, various uses of rosemary extract in cosmetics are discussed. More research on its phytochemical components could make it more useful and effective in advanced cosmeceutical products.