Green Lipped Mussel is a plant in the genus Perna and family Mytilidae. It is also known as New Zealand green-lipped mussel and greenshell mussel. The plant is mostly found in New Zealand and has also introduced as a pest in Australia. Green Lipped Mussel is a species of bivalve mollusc. It is one of the largest mussel species reaching 240 mm in length. It is used in many nutritional supplements because it contains a unique combination of fatty acids that are not found elsewhere. Another important component is a polysaccharide glycosaminoglycan, which assists in repair of damaged joint tissues. It is also shown to inhibit inflammation.