Algae extract is a popular ingredient in cosmetics due to its versatile skincare properties and rich nutritional content. Algae are widely used in cosmetics. They are rich in vitamins such as A, C, E, K, and B vitamins. These vitamins act as antioxidants, supporting skin regeneration and protecting against free radicals. Algae extract contains minerals such as magnesium, calcium, potassium, zinc, and iron, which are essential for skin health and proper functioning. Amino acids present in algae help promote skin cell regeneration and collagen production, which improves skin elasticity and firmness. Essential fatty acids in algae help moisturize the skin. Polysaccharides such as alginates, fucoidans, and agar have moisturizing and soothing properties, creating a protective film on the skin that retains moisture.