Algae
The natural cosmetics industry has for years been leveraging algae in products focused on skin care.
Algae must deal with the damaging impacts of exposure to solar radiation and other environmental hazards, and have developed special sun blocks and other agents to protect and heal themselves, which is seeing companies develop these compounds into products that offer humans the same benefits.
Polysaccharides derived from algae are natural moisturizers and can be used in cosmetics as humectants, and it remains a very popular ingredient at present.