Macroalgae, similarly known as macroscopic marine algae, benthic, photosynthetic, nonflowering plants belong to Kingdom Plantae. They are commonly found attached with rocks, sand particles, pebbles, shells, in shallow water, or other anchoring with aquatic plants. Macroalgae are rich in bioactive constituents such as carbohydrates, proteins, lipids, fatty acids, amino acids, vitamins, minerals, pigments, etc. These phyco compounds have great attention for many biological activities which can be beneficial in skin cosmetics. Many researchers reported useful activities of these phyco compounds in the protection of the skin against UU induced damaging effects and skin dehydration. Macroalgae possess photoprotective substances to include mycosporine-like amino acids (MAAs), sulfated polysaccharides, carotenoids, and polyphenols. These compounds also show UV absorbing activity as well as antioxidant activity. Other research reported role of seaweed such carbohydrates, fatty acids, lipids as well as sulfated polysaccharides in skin moisturizing activity. Hence, such unique seaweed-derived bioactive compounds have been regarded as having potential for use in skincare, cosmetics, and pharmaceutical products. The present review study aims to check the applicability of marine macroalgae in skin cosmeceutical activities such as skin moisturization and photoprotection.