Cortagen (Cortagen (Brain Cortex Peptide))
A synthetic tetrapeptide bioregulator derived from brain cortex that modulates cerebral cortex function. Part of the Khavinson peptide bioregulator family.
How it works
Regulates gene expression in cerebral cortex neurons, modulating neurotransmitter receptor density, synaptic plasticity, and neuronal energy metabolism.
Key facts
- Molecular weight: ~420 Da
- Half-life: ~2-4 hours
- Bioavailability: ~70% oral (as capsule); ~85% subcutaneous
- Storage: Room temperature, sealed container.
Dosing overview
- Typical dose: 10 mg
- Frequency: Daily for 10-15 days
- Duration: 10-15 day cycles, 2-3x/year
- Route: Oral capsule or subcutaneous injection
Protocol notes
- Run as a short bioregulator course: ~10 mg daily for 10-15 days.
- Oral capsule is the convenient route; subcutaneous injection is used for higher bioavailability.
- Repeat the course 2-3 times per year rather than dosing continuously.
Reported benefits
- Cerebral cortex optimization
- Cognitive function improvement
- Memory enhancement
- Neuroprotection
Possible side effects
- Mild headache initially
- Drowsiness (rare)
- Vivid dreams
Research
- Cortagen in age-related cognitive decline (2019): Improved cognitive test scores by 20% and normalized EEG patterns in elderly patients over 10-day course.
- Peptide bioregulators for brain function (2020): Demonstrated restoration of age-declined neurotransmitter receptor density after 2-week administration.
Community reviews of Cortagen
- dose_math_derek rated it 5/5 - Noticed clear benefits within weeks: Added Cortagen to my protocol about 3 weeks ago and it has earned its place. The benefits became noticeable around week 2-3 and have been consistent since. What I appreciate about this compound is the predictability. It does what the research suggests it should do, at roughly the timeline you would expect. No surprises, no dramatic swings, just steady improvement. No notable side effects to report at my dose. Sourcing is always the challenge with research compounds, insist on third-party testing. Storage and reconstitution per standard protocols. Plan to continue.
- morning_pin_maya rated it 5/5 - Genuinely effective after 6 weeks: Been using Cortagen for about 6 weeks and the results are clear. Not overnight dramatic, but a steady, consistent improvement that became undeniable by the end of the first month. The mechanism makes sense based on what I have read in the literature, and my subjective experience matches the expected timeline. Benefits built gradually and plateaued at a good level. Side effects were minimal to none at the dose I used. Followed proper protocols for sourcing, storage, and administration. Would recommend to others who have done their research and have realistic expectations.
- pulsatile_pat rated it 4/5 - Worth adding to the protocol: Cortagen has been a worthwhile addition. I am data-driven and tracked relevant markers before, during, and after. The improvement is measurable and correlates with the intervention timeline. What sets this apart from some compounds I have tried is the consistency. Benefits did not fluctuate wildly or disappear. They built up and maintained. That gives me confidence in the mechanism. Tolerance has been excellent. Nothing in my bloodwork or subjective experience raised any flags. This is the kind of compound that does its job quietly without causing problems. Exactly what you want.
- practical_codes rated it 4/5 - Helped me stay sharp on long clinic days: I tried Cortagen after a stretch of stupid long days coaching CrossFit in the morning and doing pharmacy work calls at night, and my brain felt muddy by about 3 pm. Over 4 weeks, it seemed to take the edge off that fog for me. I was less scattered, and I caught myself reading notes without having to re-read every line. The only caveat was it felt a little subtle, so I had to pay attention to notice it.
- chloe_s rated it 4/5 - Steadier focus for long writing days: I tried Cortagen for about 12 weeks because I’m 50-something, freelance write from the East Coast, and I wanted a little more mental steadiness on long deadline days. For me, it seemed to take the edge off that scattered, fried feeling by late afternoon. I could stay with one article longer, and my recall felt a touch cleaner when I was juggling notes. The caveat is that the effect was subtle, not dramatic, and I had a couple of days where I felt nothing at all. Still, I liked it enough to keep it in the rotation. 4 stars from me.
Compare Cortagen
Research and educational reference only. Not medical advice.