Not medical advice. Talk to your provider before using any peptide.
Full disclaimerPeptide Schedule Research TeamReviewed Apr 20265 Citations
Cortagen is a Khavinson tetrapeptide bioregulator targeting cortical tissue and epigenetic remodeling. Rat studies showed 27% faster nerve regeneration, but zero human RCTs exist. Oral capsule format at 10 to 20 mg per day. Niche community interest, strong theoretical basis, thin clinical evidence.
10mcg · Daily
Summary: Add 0mL BAC water to your 10mg vial. Draw to < 0.1 units on a U-100 syringe for a 10mcg dose. This vial will last 0 doses.
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| Level | Dose / Injection | Frequency |
|---|---|---|
| Beginner | 10mg | Daily |
| Moderate | 20mg | Daily |
| Aggressive | 20mg | Daily |
Cortagen is an oral capsule peptide. No reconstitution, no bacteriostatic water, no syringes for the standard protocol. Swallow with water on an empty stomach, 15 to 30 minutes before your first meal. Morning dosing is the move; a handful of users noticed mild stimulatory effects that interfered with sleep if taken later. Standard Khavinson course: 10 mg per day for 20 to 30 days, then stop for at least 3 months. Repeat 2 to 3 times per year. The 20 mg dose is the upper published range, appropriate for a second cycle after tolerating 10 mg. If you're using the injectable SC route (a separate sterile vial, not capsule contents): reconstitute a 10 mg vial with 2 mL bacteriostatic water to get 5 mg/mL (5,000 mcg/mL). On a U-100 insulin syringe, 0.2 mg equals 4 units. A 0.3 mg dose is 6 units. A 0.5 mg dose is 10 units (0.1 mL). Use within 28 days refrigerated. 29 to 31 gauge needle, abdomen or deltoid. The thing most people miss: Cortagen and Cortexin are different products. Don't confuse them and don't stack them together.
Dosing based on Khavinson Institute protocol — 9 published references.View all sources →
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Pricing updated 2026-04-09
Prices are estimates and vary by source, location, and prescription status.Full pricing breakdown →
Disclaimer: This curve is a simplified first-order exponential decay model. Actual pharmacokinetics vary based on injection site, individual metabolism, body composition, and other factors. Half-life values are approximate and based on available preclinical and clinical literature. Many research peptides lack formal human pharmacokinetic studies. This is for educational purposes only — not medical advice.
Cortagen is a Khavinson tetrapeptide bioregulator targeting cortical tissue and epigenetic remodeling. Rat studies showed 27% faster nerve regeneration, but zero human RCTs exist. Oral capsule format at 10 to 20 mg per day. Niche community interest, strong theoretical basis, thin clinical evidence.