The potential for use of algae in biocosmetics is vast. Products formulated with algae extract can help hydrate the skin. This is made possible by the polysaccharides which act as humectants. Fatty acids reduce transepidermal water loss by providing an occlusive barrier to the skin. A link between the prevention of oxidative stress caused by UV radiation and the use of methanol extract from seaweed has been established. This is could be applied in products whose aim is protection against the harmful effects of the sun as well as its effect on visible signs of premature aging. Peptides and phlorotannins from algae can be used for antiaging purposes since they stimulate collagen and elastin synthesis. Carotenoids are just some of the algae compounds that have shown antioxidant activity which is extremely beneficial to skin health. All of the above encourages that the research on ways algae can be incorporated into human use continues, of course paying attention to the mechanism of action as well as safety and ethics of using natural ingredients.