Your goal
More energy, better metabolism
Here's the honest truth: no peptide reliably gives a healthy person more energy on demand. The options with real proof don't 'boost' you at all - they fix a specific medical cause of low energy, like anemia or low testosterone. The buzzy 'cellular energy' compounds you'll hear about, like NAD+, have exciting biology but haven't shown they make normal people feel any better.
What actually works
3The strongest real evidence for this goal.
hCG
ModerateIf your low energy comes from genuinely low testosterone, this proven hormone medicine reliably raises it back up and better energy often follows - but it does nothing proven for metabolism or fat loss.
EPO
ProvenThe gold-standard fix for fatigue caused by anemia - it rebuilds red blood cells so your blood carries more oxygen; for a healthy person chasing an energy boost it's just doping, with no legitimate proof.
SS-31
ModerateProtects the mitochondria that power your cells and is proven to restore strength and stamina in one rare mitochondrial disease, but a larger trial for broader muscle disease failed, so everyday energy benefits are unproven.
Promising, still unproven
2Interesting early signals — not proven yet.
NAD+
EmergingThe poster child for 'energy and metabolism' supplements - the biology is real and it's safe, but human trials show it reliably raises NAD levels while doing little you can actually feel, with only early hints for blood sugar.
AICAR
EmergingFlips on the cell's main metabolism switch and acts like exercise in animals, but the only solid human proof is for protecting the heart during surgery - not for energy or fat loss.
Mostly hype - be skeptical
3Lots of buzz, little human proof. Tread carefully.
HGH Fragment 176-191
EarlyA growth-hormone fragment marketed for fat burning, but the human evidence is thin and it has never panned out as a real energy or metabolism aid.
SLU-PP-332
EarlyA lab-made 'exercise mimetic' that looks exciting in mice but has never been tested in a single living person.
Vilon
EarlyA two-amino-acid peptide that extended lifespan in aging rodents, with zero human testing behind any energy or metabolism claim.
The honest bottom line
No peptide hands a healthy person extra energy. The only proven wins come from fixing a real underlying cause - anemia or low testosterone - and the exciting 'cellular energy' compounds like NAD+ are safe but still unproven where it counts.
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