Abstract
Biomass of marine algae and their extracts are now one of the most widely used natural ingredients in cosmetics, because of the presence of a wide variety of biologically active compounds in their thalli. Mainly, it comes down to marine species, but the most current interdisciplinary research shows that freshwater macroscopic green algae species (e.g., Chara fragilis, Cladophora glomerata, Ulva flexuosa) may also be a rich source of macro- and micronutrients and other bioactive substances such as fatty acids, polysaccharides, pigments, polyphenols, etc. Freshwater macroalgae are a rare object of study and are practically absent within the cosmetics market. In this chapter, algae harvesting and the processing of algal biomass are discussed. This chapter shows, in particular, that the presence of bioactive substances in their thalli determines the broad biological activity and potential use of freshwater algae in the production of cosmetics.
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