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Specimen Atlas of Research Peptides81 plates · MIT
Side-by-side · Research reference

CortagenvsPinealon

Side-by-side comparison across mechanism, dosage, evidence, side effects, administration, and stack synergies. Citations on every claim where available.

AAnimal-MechanisticHUMAN-REVIEWED11/35 cited
BHuman-MechanisticAUTO-DRAFTED12/36 cited
Cortagen
Bioregulatory Tetrapeptide · Khavinson-School
TetrapeptideStructure
↓ LPO productsAntioxidant effectKozina 2007
AnimalEvidence level
Injectable · Animal models
Pinealon
Pineal-derived · Neuroprotective
5–10 mgPer cycle doseKhavinson 2014
HumanMechanisticKhavinson 2014
HoursHalf-life (est)
SQ or IM · Daily for 10 days · 1-2×/year

01Mechanism of Action

Parameter
Cortagen
Pinealon
Primary target
Cerebral cortex tissue — molecular targets under investigation
Antioxidant defense + neuronal gene expression (proposed)Khavinson 2014
Pathway
Antioxidant pathway modulation — suppression of LPO cascade, reduction of protein oxidative modificationKozina 2007
Modulation of antioxidant enzymes (SOD, catalase) + neurotrophic factor expressionKhavinson 2014
Downstream effect
Decreased lipid peroxidation products, reduced oxidative protein damage, altered gene expression in cardiac tissueKozina 2007Anisimov 2004
Reduced oxidative stress in neurons; improved cognitive function in age-related declineKhavinson 2014
Feedback intact?
Origin
Synthetic tetrapeptide derived from amino acid analysis of natural brain cortex peptide preparation CortexinAnisimov 2004
Synthetic 4-AA peptide derived from pineal gland extractKhavinson 2014
Antibody development

02Dosage Protocols

Parameter
Cortagen
Pinealon
Animal model dose (rat)
Injection protocol (dose not specified in abstracts)
Multiple injections over study period.
Avian model dose (chicken)
40-day injection courseKuznik 2008
Compared to epithalon in hypophysectomized and aged birds.
Human peripheral nerve study
Therapeutic course (protocol details not provided)
Posttraumatic recovery context — reference cited but not detailed.
Evidence basis
Animal mechanistic studies
Russian clinical trials + in vitroKhavinson 2014
Route
Injectable (inferred from animal protocols)
Standard dose
5–10 mg / day for 10 daysKhavinson 2014
Frequency
Once daily during cycle
Lower / starter dose
2.5 mg / day
Duration
10-day cycles, 1–2× per year
Reconstitution
Bacteriostatic water
Timing
No specific time
Half-life
Hours

04Side Effects & Safety

Parameter
Cortagen
Pinealon
Antioxidant suppression
Suppression of antioxidant activity noted alongside LPO reductionKozina 2007
Mechanism unclear — possible homeostatic adaptation.
Immune/hemostasis effects
No effect on immunity or hemostasis parameters in avian hypophysectomy model (unlike epithalon)Kuznik 2008
Epithalon reversed deficits; cortagen did not.
Human safety data
No adverse events reported in peripheral nerve recovery context
Limited detail in available abstracts.
Injection site reaction
Mild irritation
Long-term safety
Limited Western data
Pregnancy / OB
Avoid
Absolute Contraindications
Cortagen
Pinealon
  • ·Pregnancy / breastfeeding
Relative Contraindications
Cortagen
Pinealon
  • ·Active malignancy (theoretical via gene expression modulation)

05Administration Protocol

Parameter
Cortagen
Pinealon
1. Preparation
Reconstitute lyophilised peptide with bacteriostatic water per supplier protocol. Exact volumes depend on concentration supplied.
Add 1–2 mL bacteriostatic water to 10 mg vial.
2. Injection site
Subcutaneous injection typical for bioregulatory peptides — abdomen or thigh. Rotate sites.
SQ — abdomen preferred.
3. Timing
Animal protocols used repeated dosing over weeks. Human timing not established — evening administration common in Khavinson tradition.
Daily during cycle, any time.
4. Storage
Lyophilised: refrigerate or freeze per supplier. Reconstituted: refrigerate 2–8 °C, use within guideline window.
Lyophilised: room temp. Reconstituted: refrigerate ≤30 days.
5. Needle
29–31G, 4–8 mm insulin syringe.

06Stack Synergy

Cortagen
— no documented stacks
Pinealon
+ Epitalon
Moderate
View Epitalon

Pinealon (neuroprotection) + Epitalon (telomerase activation) form the canonical Khavinson "longevity stack" — both pineal-derived bioregulators with complementary axes. Pinealon supports neuronal antioxidant defense; Epitalon supports telomere maintenance. Anecdotally cycled together 1–2× per year.

Pinealon
5–10 mg SQ · daily × 10 days
Epitalon
5–10 mg SQ · daily × 10 days (overlap or alternate)
Primary benefit
Neuroprotection + telomere preservation