Chlorella vulgaris is a green eukaryotic microalga in the genus Chlorella and is a small, spherical alga with a size of 5-10 µm. Hence, this microalgae`s global production is aimed at application in food and cosmetics with its essential nutrients such as vitamins, minerals, and bioactive compounds. Comparing the components of chlorella, spinach, milk, and eggs, protein, vitamins, and minerals are very high compared to milk and eggs, which are representative high-nutrition foods.

Related to skin aging supplements and cosmeceuticals, extracts from C. vulgaris have been reported to support collagen repair mechanisms and stimulate collagen synthesis in the skin. It can be used in products supporting tissue regeneration and wrinkle reduction. Several clinical tests show that just a 1% concentration of chlorella increases the skin`s firmness and tone after 48 hours of use. Also, it relieves skin redness and psoriasis. Another great benefit of chlorella for the skin is the anti-oxidant effect because of its total polyphenol and flavonoid content.