Understand the source comparison
Do Peptides Help With Energy — Comparison
Growth Hormone Secretagogues (MK-677, GHRP-2, Hexarelin) Stimulate pituitary GH release → IGF-1 elevation → mitochondrial biogenesis Direct: ATP production, nutrient partitioning, glycogen sparing 4–6 weeks for measurable performance gains Multiple RCTs show 3
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- Growth Hormone Secretagogues (MK-677, GHRP-2, Hexarelin)
- Stimulate pituitary GH release → IGF-1 elevation → mitochondrial biogenesis
- Direct: ATP production, nutrient partitioning, glycogen sparing
- 4–6 weeks for measurable performance gains
- Multiple RCTs show 30–50% IGF-1 increase, improved lean mass, VO2 max improvements
- Strongest evidence for direct energy enhancement through metabolic optimization
- Recovery Peptides (BPC-157, TB-500)
- Accelerate tissue repair, reduce inflammation, promote angiogenesis
- Indirect: reduced recovery debt, lower ATP cost of repair
- 7–14 days for subjective recovery improvements
- Primarily animal models; human evidence is observational but consistent
- Best for reducing fatigue accumulation, not immediate energy boost
- Thymic Peptides (Thymalin)
- Normalize immune function, reduce chronic inflammation
- Indirect: lower metabolic drain from immune activation
- 2–4 weeks for immune markers to normalize
- Soviet-era clinical studies; limited recent RCT data
- Supports energy by reducing inflammatory ATP consumption
- Neurological Peptides (Dihexa, Cerebrolysin, P21)
- Enhance synaptic efficiency, upregulate neurotrophic factors
- Indirect: reduced ATP cost per cognitive task, improved mental stamina
- 2–3 weeks for cognitive performance improvements
- Dihexa: rodent studies; Cerebrolysin: stroke recovery trials; P21: limited human data
- Best for cognitive endurance; physical energy benefits are secondary