For laboratory research use only — not for human or veterinary consumption.
The Peptide Index
Dosing guide

Thymalin Dosage Chart & Schedule

Thymalin is a peptide fraction extracted from thymus tissue and used in Russian clinical research as an immunomodulator intended to restore T-cell balance in aging and illness. It is used as a drug in Russia but is not FDA-approved, and most evidence comes from Russian-language literature.

Route
Intramuscular
Frequency
Daily, 5-10 day course
Half-life
Not well characterized
Storage
Lyophilized: cool or frozen. Reconstituted: refrigerate 2-8 C.
The short answer

Thymalin is a thymus-derived peptide fraction used in Russian clinical research as an immunomodulator. Reports describe roughly 10 mg intramuscularly once daily for 5-10 day courses; it is used as a drug in Russia but is not FDA-approved, and most evidence is Russian-language literature, so this is reported context.

Figures describe how Thymalin is reported in the research literature and research-community references — not a recommendation for human use. For laboratory research only.

Dosage protocols

Commonly referenced research tiers. Start conservative; every compound and study context differs.

Starter
5 mg
About 100 units (1 mL) at 5 mg/mL (10 mg + 2 mL)
Frequency
Once daily, intramuscular
Weekly total
About 25-35 mg per 5-10 day course
Cycle
Short 5-10 day courses (Russian clinical reports)

Lower end of the reported 5-10 mg daily range.

Most commonStandard
10 mg
About 200 units (2 mL) at 5 mg/mL - the full vial
Frequency
Once daily, intramuscular
Weekly total
About 50-70 mg per 5-10 day course
Cycle
Short 5-10 day courses (Russian clinical reports)

The commonly reported daily figure; not FDA-approved, reported context only.

Used in Russia, not FDA-approved

  • Thymalin is used as a drug in Russia but is not FDA-approved.
  • Most evidence is Russian-language literature.
  • Reports describe about 10 mg intramuscularly daily for 5-10 day courses.

Ready to run this protocol?

Dosing is only as good as the vial. Research-grade peptides are third-party tested with published COAs from our top-rated source — reconstitute with confidence and skip the guesswork on identity and purity.

Weekly schedule

A typical week on the standard protocol (Once daily, intramuscular).

Mon
Tue
Wed
Thu
Fri
Sat
Sun

Dosing day Off

From vial to injection in 6 steps

1

Wipe both vial tops

Swab the peptide vial and the bacteriostatic-water vial with fresh alcohol and let them dry.

2

Draw the water

Pull the planned amount of bacteriostatic water (2 mL) into the syringe.

3

Add it slowly

Run the water down the inside wall of the vial — don't blast the powder. Swirl gently; never shake.

4

Let it dissolve

Wait until the solution is fully clear, then refrigerate the vial.

5

Draw your dose

Pull the calculated units on a U-100 insulin syringe.

6

Store between uses

Keep the reconstituted vial refrigerated and use within its stable window.

Handling & storage

  • A 10 mg vial with 2 mL bacteriostatic water gives 5 mg/mL; one U-100 unit is about 50 mcg.
  • Historically given intramuscularly in short 5-10 day courses.
  • Reconstitute gently and refrigerate the solution.
  • Research use only in the West; used as a drug in Russia.

Thymalin dosing FAQ

What dose is reported for thymalin?

Russian clinical reports describe roughly 10 mg intramuscularly once daily for 5-10 day courses. It is used as a drug in Russia but is not FDA-approved, so this is reported context.

How is it given?

Historically it is reconstituted from lyophilized powder and injected intramuscularly in short courses.

How much is one syringe unit?

At a 10 mg + 2 mL mix (5 mg/mL), one U-100 unit is about 50 mcg, so 5 mg is roughly 100 units (1 mL).

Is thymalin approved?

It is used as a drug in Russia but is not FDA-approved; most supporting evidence is in Russian-language literature.

Sources

Categories: Immune & Gut · Status: Approved (see notes). This page is educational and for laboratory research use only; it is not medical advice.