What is the difference between PRP and Lipogems?

Could you please clarify the distinction between PRP and Lipogems for me? I understand that both involve some form of fat transfer or treatment, but I'm unsure of the specific differences in their applications, techniques, or outcomes. Is one more suitable for certain medical conditions or aesthetic goals than the other? Additionally, how do their respective procedures differ, and what are the potential risks and benefits associated with each?