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Immune support

Thymulin

Also known as: Zinc-thymulin · FTS

A zinc-dependent thymic peptide studied for immune balance and anti-inflammatory effects.

Thymulin at a glance

NameThymulin
Also known asZinc-thymulin, FTS
CategoryImmune support
TypePeptide
SequenceNonapeptide that requires zinc for activity
Typical doseResearch-scale (varies)
FrequencyVaries
RouteSubcutaneous injection
Half-lifeShort.

Overview

Thymulin is a hormone from the thymus that only becomes active when bound to zinc. It helps regulate T-cell development and immune balance, and research has explored it for immune support, inflammation, and even pain signaling.

How it’s thought to work

  • Supports T-cell differentiation and immune regulation (zinc-dependent).
  • Shows anti-inflammatory and neuroendocrine effects in studies.

Researched uses

  • Immune balance and anti-inflammatory research
  • Age-related immune decline studies

Commonly cited protocol

Typical doseResearch-scale (varies)
FrequencyVaries
RouteSubcutaneous injection
NotesAdequate zinc status matters for activity.

Reconstitution

Often a 5 mg vial. 5 mg with 2 mL water = 2.5 mg/mL, so 250 mcg = 10 units on a U-100 syringe.

Thymulin dosage calculator

The calculator below is pre-filled with Thymulin’s commonly cited vial size and dose. Adjust the vial amount, bacteriostatic water, or dose to match your own vial — it will show the exact insulin-syringe units to draw, the concentration, and how many doses the vial holds.

mg
250 mcg = 0.25 mg
mL
How much water you add is your choice — it doesn’t change your dose, only how many units you draw. Common:
Draw to
10 units
= 0.1 mL on a 1 mL (100 units) syringe
010203040506070809010010 ufill to the 10 u line on a 100-unit barrel
Concentration
2.5 mg/mL
Per unit
25 mcg/u
Doses per vial
20 × 250mcg
Volume
0.1 mL
📋 In plain English

Add 2 mL of bacteriostatic water to your 5 mg vial. That gives you about 20 doses of 250 mcg. For each dose, draw 10 units into a 100-unit insulin syringe.

See the full Thymulin dosing chart (units for every dose & water amount), or open the full peptide calculator →

Cautions

  • Not approved for human use.
  • Limited modern human data.
  • Research chemical status.

Thymulin FAQ

What is Thymulin?

A zinc-dependent thymic peptide studied for immune balance and anti-inflammatory effects.

How does Thymulin work?

Supports T-cell differentiation and immune regulation (zinc-dependent). Shows anti-inflammatory and neuroendocrine effects in studies.

What is Thymulin used for?

Immune balance and anti-inflammatory research; Age-related immune decline studies.

What is a typical Thymulin dose?

Research-scale (varies), Varies, Subcutaneous injection. This is a commonly cited figure for context only, not medical advice.

How do you reconstitute Thymulin?

Often a 5 mg vial. 5 mg with 2 mL water = 2.5 mg/mL, so 250 mcg = 10 units on a U-100 syringe.

What is the half-life of Thymulin?

Short.

Related immune support peptides

⚠️ Educational reference only — not medical advice. These compounds are largely research chemicals not approved for human use in most countries. Nothing here is a recommendation to obtain or administer any substance. Consult a qualified clinician.