Understand the source comparison
Peptides for Energy: Type & Mechanism Comparison
Mitochondrial Function (SS-31, MOTS-c) Stabilizes inner mitochondrial membrane, improves electron transport chain coupling Direct ATP synthesis efficiency. More energy per unit fuel consumed 7–14 days for measurable output change 20–40mg daily (SS-31), 5–15mg
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- Mitochondrial Function (SS-31, MOTS-c)
- Stabilizes inner mitochondrial membrane, improves electron transport chain coupling
- Direct ATP synthesis efficiency. More energy per unit fuel consumed
- 7–14 days for measurable output change
- 20–40mg daily (SS-31), 5–15mg 3×/week (MOTS-c)
- Requires functional mitochondria. Low density limits response
- Best for metabolic optimization in aging or high-oxidative-stress populations
- Growth Hormone Secretagogues (MK 677, GHRP-2)
- Elevates endogenous GH/IGF-1, improves sleep architecture and substrate metabolism
- Indirect via improved body composition, insulin sensitivity, glycogen restoration
- 4–8 weeks for sustained energy stabilization
- 25mg daily (MK 677), 100–300mcg 2–3×/daily (GHRP-2)
- Works best with suboptimal baseline GH/IGF-1 levels
- Effective for age-related energy decline but requires weeks to manifest. Not acute
- Neuropeptides (Cerebrolysin, Dihexa, Semax)
- Increases BDNF, enhances neurotransmitter receptor density and synaptic plasticity
- Cognitive energy. Reduces mental fatigue and improves focus under sustained cognitive load
- 3–10 days for subjective clarity improvements
- 30–50mL IV (Cerebrolysin), 5–10mg oral (Dihexa), 300–600mcg nasal (Semax)
- Requires baseline cognitive demand. Minimal effect in low-stress, low-complexity environments
- Domain-specific to mental tasks. Does not address physical endurance or systemic ATP
- Thymic Peptides (Thymalin)
- Modulates immune function and cellular repair signaling via thymic hormone pathways
- Indirect via reduced systemic inflammation and improved recovery capacity
- 2–4 weeks for sustained vitality improvements
- 10–30mg IM 2–3×/week for 4–6 weeks
- Most effective in immune-compromised or chronic-fatigue contexts
- Energy benefit is secondary to immune optimization. Not a direct ATP modulator