Understand the source comparison
Comparison Table: Best Peptides for Cortisol Reduction
Thymalin T-cell modulation, cytokine regulation Reduces inflammation-driven cortisol demand through immune normalization Russian gerontology studies; aged rodent models; no randomized human cortisol trials 5–10mg subcutaneous, 2–3×/week Strongest rationale for
No winner is assigned.
This page preserves a source comparison for education. It does not add a rating, recommendation or clinical judgment.
- Thymalin
- T-cell modulation, cytokine regulation
- Reduces inflammation-driven cortisol demand through immune normalization
- Russian gerontology studies; aged rodent models; no randomized human cortisol trials
- 5–10mg subcutaneous, 2–3×/week
- Strongest rationale for immune-mediated cortisol modulation; human cortisol data limited to observational immune studies
- P21
- CNTF-mediated hippocampal neurogenesis
- Restores HPA negative feedback by increasing glucocorticoid receptor density
- Rodent stress models; no human cortisol endpoints published
- 5mg subcutaneous daily
- Mechanistically sound for chronic stress; no direct human cortisol measurement data
- Dihexa
- HGF/c-Met amplification, synaptic repair
- Reverses cortisol-induced dendritic atrophy in hippocampus and cortex
- Alzheimer's preclinical models; synaptic plasticity studies; cortisol not measured as endpoint
- 1–5mg oral or subcutaneous daily
- Indirect cortisol relevance through neuroprotection; cortisol reduction is speculative extrapolation
- Cerebrolysin
- Neurotrophic peptide mixture
- Supports neuroplasticity in stress-damaged regions
- Clinical stroke and TBI studies; cortisol not primary endpoint
- 5–10mL IV infusion
- Used clinically for neurological recovery; cortisol link is tertiary to neuroprotection
- KPV
- Anti-inflammatory tripeptide
- Reduces systemic inflammation and may lower immune-driven cortisol demand
- In vitro anti-inflammatory studies; no cortisol-specific trials
- 500mcg–2mg subcutaneous
- Anti-inflammatory mechanism plausible for secondary cortisol effects; no direct evidence