Raw head-on shell-on shrimp” refers to untreated shrimp that retain both their heads and outer shells. These shrimp have not undergone any cooking process and are in their natural state. The presence of the head and shell contributes to their flavor and texture. When preparing these shrimp for cooking, the shells and heads can be removed or incorporated based on the desired dish. They are versatile ingredients commonly used in various seafood dishes, known for their distinctive taste and culinary flexibility.