A Review on, Formulation and Evaluation of Orange Peel Herbal Soap

Orange peel, the outer layer of the fruit of Citrus sinensis, contains many beneficial phytochemicals. Orange peel contains many active compounds including flavonoids, phenolics and essential oils. These compounds are of interest due their antioxidant and antimicrobial activity. Orange peel often goes to waste. Using orange peel in herbal cosmetics could therefore be a great opportunity. This review will look at how orange peel could be used in herbal soap. Orange peel extract contains many phytochemical compounds. Different ways of formulating orange peel extract into soap will be discussed alongside important factors to consider. Physical and physicochemical properties of the formulated soap can be determined by looking at color, aroma, pH, foaming, stability, moisture content and free alkali. Further testing could be carried out to determine antioxidant activity, antimicrobial activity and skin compatibility. While using orange peel in soap could be a useful way of adding value to fruit waste, a suitable experiment is required to ensure it works well, remains stable and is safe. [1,7,9,10].