Understand the source comparison
How to Use Peptides for Brain Fog: Protocol Comparison
Cerebrolysin Neurotrophic support (NGF/BDNF mimetic) 5–10 mL daily IM/SC 10–20 days on, 2–4 weeks off Neurotrophic deficiency, age-related decline Gold standard for neurotrophic restoration. Robust clinical data, expensive Dihexa HGF mimetic (c-Met receptor ag
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- Cerebrolysin
- Neurotrophic support (NGF/BDNF mimetic)
- 5–10 mL daily IM/SC
- 10–20 days on, 2–4 weeks off
- Neurotrophic deficiency, age-related decline
- Gold standard for neurotrophic restoration. Robust clinical data, expensive
- Dihexa
- HGF mimetic (c-Met receptor agonist)
- 1–5 mg every other day SC
- 4 weeks on, 4–8 weeks off
- Learning enhancement, memory consolidation
- Potent dendritic growth. Requires strict cycling to avoid receptor tolerance
- P21
- CNTF-derived neurogenesis support
- 100–500 mcg 3–5x/week SC
- 4–6 weeks
- Hippocampal neurogenesis, pattern recognition
- Supports adult neurogenesis. Slower onset but sustained effect
- Thymalin
- Immune modulation, neuroinflammation reduction
- 5–10 mg 2–3x/week SC
- 4 weeks
- Inflammation-driven brain fog, autoimmune flares
- Addresses upstream inflammation. Use before neurotrophic peptides
- MK 677
- Growth hormone secretagogue (IGF-1 elevation)
- 10–25 mg once daily oral
- 8–12 weeks
- Mitochondrial support, energy substrate
- Indirect cognitive benefit via improved sleep and mitochondrial biogenesis