Adipose tissue combinations, devices, and uses thereof

A system for processing adipose tissue for reintroduction into the body, the system comprising:

• a container including a first compartment, a second compartment, a third compartment, and a tortuous path having a plurality of sharp turns and extending between the second and third compartments, each of the first, second, and third compartments being positioned at different vertical levels of the container to induce movement of harvested adipose tissue by gravity;
• wherein the first compartment is configured to receive and filter the harvested adipose tissue, wherein the second compartment is connected to the first compartment and includes an additive injector, the tortuous path configured to mix and convey additive and fat from the second compartment to the third compartment, and wherein the third compartment is connected to the second compartment via the tortuous path and is configured to dispense adipose tissue and additive to a patient.