Not medical advice. Talk to your provider before using any peptide.
Full disclaimerPeptide Schedule Research TeamReviewed Apr 20268 Citations
ThymalinSmall moleculeNo amino acid sequence. Icon reflects category theme only.Thymalin is a bovine thymic peptide extract with 40+ years of clinical use in Russia. Short 10-day courses restore T-cell counts and CD4/CD8 ratios. One group's data shows striking mortality reduction, but no independent replication exists yet in the Western literature.
5mcg · Daily
Summary: Add 2mL BAC water to your 10mg vial. Draw to 0.1 units on a U-100 syringe for a 5mcg dose. This vial will last 2000 doses.
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| Level | Dose / Injection | Frequency |
|---|---|---|
| Beginner | 5mg | Daily |
| Moderate | 10mg | Daily |
| Aggressive | 20mg | Daily |
Standard protocol: 5 to 10 mg intramuscular or subcutaneous, once daily for 10 days. Repeat every 6 months if you're over 60, or every 12 months if younger. Reconstitution math for a 10 mg vial: add 1 mL bacteriostatic water. Each 0.1 mL (10 units on a U-100 insulin syringe) then equals 1 mg. For the beginner 5 mg dose, draw 50 units. For the standard 10 mg dose, you'll use the entire vial in one shot at 100 units; that means one vial per day for a 10-day course (10 vials total). The thing most beginners miss: you won't feel anything. Thymalin's benefits are lab-measurable, not subjectively perceptible. Get a CBC with differential and CD4/CD8 ratio before your course and again 4 to 6 weeks after. That's how you confirm it's working. The Russian label specifies intramuscular only. Community widely uses subcutaneous without issue, but no published bioavailability comparison exists for the extract form. If you want to match the clinical evidence exactly, go IM in the gluteal or deltoid.
Dosing based on Khavinson Institute clinical trials (PMID 14523363) — 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.
Thymalin is a bovine thymic peptide extract with 40+ years of clinical use in Russia. Short 10-day courses restore T-cell counts and CD4/CD8 ratios. One group's data shows striking mortality reduction, but no independent replication exists yet in the Western literature.
