Based on consumer demand for natural ingredients, seaweeds are becoming more popular in the cosmetic, cosmeceutical, and nutricosmetics industries. Due to their abundant availability, renewable nature, and important bioactive substances, which may be employed as ingredients, additives, and active agents in the creation of skin care products, seaweeds have a number of advantages. The biological qualities of seaweeds are due to bioactive substances like polyphenols, polysaccharides, proteins, peptides, amino acids, lipids, vitamins, and minerals. Technical characteristics like thickening, gelling, emulsifying, texturizing, or moistening to create cohesive matrices are also available from seaweed fractions. In addition, the potential for valorizing algal blooms and industrial waste streams makes them desirable raw materials that are inexpensive and renewable. In recent years, there has been an increase in consumer preference for environmentally friendly and green products. This tendency is also evident in the cosmetics industry, which is a cutthroat and quickly evolving worldwide market that demands natural, secure, and effective components for the creation of cutting-edge skin care products. Cosmeceuticals and nutricosmetics are two additional recently developed items. The term "cosmeceutical" refers to active, safe products created and put through testing by the cosmetics industry to improve the appearance of skin and be efficient in treating and preventing various dermatologic disorders. Vitamins, phytochemicals, enzymes, antioxidants, and essential oils are among the other active substances that can be utilised to create creams, lotions, ointments, or masks.