In this population, the abdomen often retains more subcutaneous fat than the thigh and may be the better choice
To be reconstituted (see instructional video)
Combination protocols leverage three principles
However, practical protocol design becomes significantly more complex with multi-compound stacks: you must isolate each compounds contribution, monitor for cumulative metabolic stress, and ensure endpoint measurements can differentiate between GH-mediated effects (lipolysis, lean mass changes) and AMPK-mediated effects (insulin sensitivity, fat oxidation)
In summary, use the injections for as long as they are providing a clear benefit and need
A 2025 narrative review of musculoskeletal research described both the regenerative findings and the open questions about translation to human clinical use (PMID 40789979)