🩹 Injury & recovery
Tendons, ligaments, muscle, gut — the “help me heal faster” bucket.
🔥 Fat loss & appetite
Appetite control and metabolism — the best-evidenced category here.
💪 Growth hormone & body composition
Support your own GH output for recovery, sleep and composition.
✨ Skin, anti-aging & longevity
Collagen, skin quality and the longevity rabbit-hole.
🧠 Focus, calm & mood
The nootropic corner — sharpen up or settle down.
❤️ Libido & metabolic edge
The specialists that don’t fit a neat box.
Carl’s reminder: “Best for a goal” means “most-studied for it,” not “proven to work for you.” Human evidence varies wildly across this list — the approved fat-loss drugs sit on solid trials; several others are promising-in-animals only. Always read the full guide and talk to a clinician. See Legal & Safety.

Start with the