Source comparison
CJC-1295 with Coffee Safety: Protocol Comparison
Cortisol Elevation During Peak GH Window Elevated 30–50% during 2–4 hour post-injection window Minimal. Cortisol baseline restored before peptide peaks Baseline cortisol maintained throughout GH pulse window Timing separation (3+ hours post-injection) preserve
This comparison does not assign a generated winner or score.
- Cortisol Elevation During Peak GH Window
- Elevated 30–50% during 2–4 hour post-injection window
- Minimal. Cortisol baseline restored before peptide peaks
- Baseline cortisol maintained throughout GH pulse window
- Timing separation (3+ hours post-injection) preserves endocrine baseline without requiring caffeine elimination. Most practical for long-term research compliance
- Measured GH Pulse Amplitude
- Suppressed by 18–30% vs caffeine-free baseline
- Normal. Full CJC-1295 amplification observed
- Normal. Full amplification observed
- Caffeine consumed well after the peptide's peak GHRH activity window does not interfere with GH secretion. Consumption timing is the variable, not caffeine itself
- Risk of Peptide Degradation or Interaction
- None. No chemical interaction occurs
- None. Peptides are not metabolised by the same pathways as caffeine
- None. CJC-1295 stability is independent of caffeine
- The safety concern is hormonal, not pharmacological. Caffeine and CJC-1295 do not interact at the molecular level, only at the endocrine signalling level
- Research Outcome Variability
- High. Cortisol-driven GH suppression introduces 20–35% variability in measured endpoints
- Low. GH response remains consistent with expected peptide pharmacodynamics
- Low. Consistent GH response across all test subjects
- Undocumented caffeine timing is one of the most common uncontrolled variables in GH research. Documenting intake eliminates false attribution of variability to peptide quality or dosing error