A well-known superfood, spirulina is a blue-green algae and one of the most nutritious foods on the planet. Loaded with proteins, vitamins, minerals, and fatty acids, spirulina protects from free radical damage, boosts collagen production, and fights inflammation. With its antioxidant properties and ability to help regenerate cells, spirulina promotes radiant skin, whilst its high chlorophyll content helps retain moisture in the skin.