Pernaton Gel For Joint Massage 125Ml contains Green Lipped Mussel Extract (Perna) which helps support healthy joints and connective tissue as well as providing relief. The Green Lipped mussel which the Perna Extract is derived from is sourced from waters around New Zealand. As a gel, it is rubbed onto the affected area and is absorbed easily without leaving a greasy residue. It may be beneficial to apply before and after sports and exercise.