Look for products labeled "New Zealand Green Mussels" or "Greenshell Mussels." These are significantly larger than common blue mussels.
The most common form in grocery stores. Brands like Panapesca are often found in the freezer aisle. buy green lipped mussels
Sites like Wild Fork Foods , The Fish Society , or Raw Feeding Miami . Buying for Supplements (Human & Pet) Look for products labeled "New Zealand Green Mussels"