spirulina extract is said to have a hydrating effect on the skin’s surface layers. Botanical claims also maintain that certain spirulina proteins contribute to the stimulation of the fibroblast and to tissue regeneration. It is also attributed with anti-oxidant ability. Spirulina is a blue-green algae, with constituents that include protein, vitamins B and e, carotenoids, iron, zinc, copper, and gamma linolenic acid.