Perna Pro with Lemon Flavoring by Da Vinci Laboratories of Vermont is a dietary supplement that contains green-lipped muscle for supporting joints & connective tissue functions. It contains an advanced joint & connective tissue formula that can be used as an alternative or in conjunction with other joint health programs. It combines the powerful benefits of Perna, Glucosamine, Methylsulfonylmethane (MSM), Boswellic Acids & Manganese for a quicker response than would be seen if any nutrient was taken singularly.