Spirulina is a complete protein, contains all the essential amino acids and omega-3 fatty acids, and is rich in many nutrients, including B vitamins and iron. Because of these qualities, spirulina makes a great addition to your skincare routine.
Phycocyanin is the main active ingredient in spirulina and gives the algae its rich blue-green color. It helps activate cellular antioxidant activity, which results in the elimination of free radicals. Spirulina may increase growth factors in dermal fibroblastcells, which are the cells responsible for creating collagen. This could possibly contribute to a skin tightening effect.