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32 results
29 suppliers · 6 dosages · 32 products
Featured Supplier
Kensington Labs logo
Kensington Labs
★★★★★ 4.6

Thymalin 10mg

In Stock 10mg Lab Tested
£24.95
FREE delivery
Best Price
Save 36%
UK Peptides logo
UK Peptides
★★★★☆ 4.2 reviews

Thymalin 2mg

In Stock 2mg Lab Tested
£10.95
FREE delivery
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The Peptides Outlet

Thymalin 2mg

£16.99
In Stock 2mg
FREE delivery
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Power Peptides

Thymalin 10mg

£17.00
In Stock 10mg
Save 77% FREE delivery
OP Labs logo
OP Labs

Thymalin 10mg

£19.90
In Stock 10mg Lab Tested
Save 73% FREE delivery
Elixer Peptides logo
Elixer Peptides

Thymalin 10mg

£20.00
In Stock 10mg
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Apex Receptor logo
★ 1.8
Apex Receptor

Thymalin 10mg

£22.00
In Stock 10mg Lab Tested
Save 71% FREE over £50
RP Peptides logo
★ 4.7
RP Peptides

Thymalin 10mg

£25.00
£22.50
In Stock 10mg Lab Tested Coupon
Save 70% FREE delivery
BioPlex Peptides logo
BioPlex Peptides

Thymalin 10mg

£22.99
In Stock 10mg Lab Tested
Save 69% FREE delivery
Bionik Peptides logo
Bionik Peptides

Thymalin 10mg

£23.00
In Stock 10mg
Save 69% FREE delivery
Dr P Research logo
★ 5.0
Dr P Research

Thymalin 10mg

£24.99
In Stock 10mg Lab Tested
Save 67% FREE delivery
Tide Labs logo
Tide Labs

Thymalin 10mg

£24.99
In Stock 10mg
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Peptagenix Peptides logo
Peptagenix Peptides

Thymalin 5mg

£24.99
In Stock 5mg Lab Tested
Save 15% FREE delivery
Regenix Peptides logo
Regenix Peptides

Thymalin 10mg

£25.00
In Stock 10mg Lab Tested
Save 67% FREE delivery
Raccoon Peptides logo
★ 5.0
Raccoon Peptides

Thymalin 10mg

£29.00
In Stock 10mg Lab Tested
Save 61% FREE delivery
Direct Peptides logo
Direct Peptides

Thymalin 20mg

£29.39
In Stock 20mg Lab Tested
Save 43% FREE delivery
NASS Peptides logo
NASS Peptides

Thymalin 10mg

£29.50
In Stock 10mg Lab Tested
Save 61% FREE delivery
UK Peptides logo
★ 4.2
UK Peptides

Thymalin 5mg

£29.50
In Stock 5mg Lab Tested
FREE delivery
Nexum Peptides logo
Nexum Peptides

Thymalin 10mg

£29.99
In Stock 10mg Lab Tested
Save 60% FREE delivery
Sculpt Peptide logo
Sculpt Peptide

Thymalin 10mg

£30.00
In Stock 10mg
Save 60% FREE delivery
Pure Peptides UK logo
Pure Peptides UK

Thymalin 10mg

£35.00
In Stock 10mg Lab Tested
Save 53% FREE delivery
Wild Ginger Peptides logo
Wild Ginger Peptides

Thymalin 10mg

£39.95
In Stock 10mg Lab Tested
Save 47% FREE over £75
RC Peptides logo
RC Peptides

Thymalin 10mg

£40.00
In Stock 10mg Lab Tested
Save 47% FREE delivery
RESEAR
Research Peptides

Thymalin 10mg

£40.00
In Stock 10mg Lab Tested
Save 47% FREE delivery
Biolab logo
★ 4.0
Biolab

Thymalin 20mg

£41.99
In Stock 20mg Lab Tested
Save 19% FREE delivery
Pure Peptides UK logo
Pure Peptides UK

Thymalin 20mg

£45.00
In Stock 20mg Lab Tested
Save 13% FREE delivery
Peptides Lab UK logo
Peptides Lab UK

Thymalin 10mg

£46.99
In Stock 10mg Lab Tested
Save 37% FREE delivery
Pen Peptide logo
Pen Peptide

Thymalin 20mg

£52.00
In Stock 20mg Pen
FREE delivery
Leolab logo
Leolab

Thymalin 10mg

£60.00
In Stock 10mg Lab Tested
Save 20% FREE delivery
Core Peptides logo
Core Peptides

Thymalin 10mg

£74.86
In Stock 10mg Lab Tested
FREE delivery
Unavailable
DN Research logo
DN Research

Thymalin 30mg

£158.71
In Stock 30mg Pen
(€184.00 EUR) FREE delivery
DN Research logo
DN Research

Thymalin 100mg

£241.99
In Stock 100mg
FREE delivery

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Thymalin Profile

Well Studied

Thymic Peptide Bioregulator | Immune Modulator

Overview

Thymalin is a natural peptide bioregulator derived from calf thymus gland, developed in the Soviet Union in the 1970s. It contains a mixture of thymic peptides that support immune restoration, anti-aging, and tissue regeneration. Research spanning decades has shown significant geroprotective effects, with studies demonstrating up to 2-fold reduction in mortality rates and 4-fold reduction when combined with Epithalamin.

Mechanism of Action

Thymalin's immunoprotective action stems from short peptides (KE, EW, EDP) that specifically bind to double-stranded DNA and histone proteins to regulate gene expression. It stimulates differentiation and activity of T-lymphocytes, especially CD4+ and CD8+ cells, promotes cytokine regulation, enhances antigen response, and stimulates stem cell differentiation. It also affects gerontogene activity and immune system protein synthesis.

Key Benefits

  • Potent immune system restoration and modulation
  • Significant geroprotective (anti-aging) effects
  • Reduced mortality rate in clinical studies (2.0-2.1 fold)
  • Normalized cardiovascular, endocrine, and nervous system function
  • Reduced acute respiratory disease incidence (2.0-2.4 fold)
  • Enhanced T-lymphocyte differentiation (CD4+, CD8+)
  • Antitumor effects in animal studies
  • Safe for elderly populations with no side effects

Quick Stats

Typical Dose
10mg per injection
Frequency
Daily for 5-10 days, then break
Cycle Duration
5-10 day cycles (short bioregulator protocol)
Storage
Reconstituted: 2-8°C refrigerated

Molecular Information

Molecular Weight
Variable (peptide complex)
Type
Polypeptide mixture
Half-Life
Not established (complex mixture); effects persist for weeks

Modifications

Contains short peptides KE, EW, EDP

Research Indications

The following information is derived from published scientific literature and is provided for educational and research reference purposes only. It does not constitute medical advice, diagnosis, or treatment recommendations. These peptides are not approved for human use and are sold exclusively for in-vitro laboratory research.

Immune Restoration

Most Effective

Stimulates T-lymphocyte differentiation and activity for comprehensive immune system restoration.

Lymphopenia Recovery

Most Effective

Accelerates recovery of lymphocyte populations including CD4+, CD3+HLA-DR+, B-cells, and NK-cells.

Respiratory Illness Prevention

Effective

2.0-2.4 fold reduction in acute respiratory disease incidence in elderly patients.

Mortality Reduction

Most Effective

Clinical studies showed 2.0-2.1 fold mortality reduction over 6-8 years in treated elderly.

Geroprotection

Effective

Normalizes basic body functions and improves cardiovascular, endocrine, immune, and nervous systems.

Combined Protocol

Most Effective

When combined with Epithalamin for 6 years, mortality decreased 4.1 times vs control.

COVID-19 Support

Effective

Faster reversal of lymphopenia and immune marker recovery in severe COVID-19 patients.

Antitumor Effects

Moderate

Tumor growth arrest and regression observed in over half of animals in sarcoma studies.

Thymus Normalization

Effective

Normalizes thymus function during aging process.

Dosing Protocols

injectable

Administered via intramuscular or subcutaneous injection in short 5-10 day cycles. Often combined with other bioregulators like Epitalon or Vilon for enhanced systemic effects. Practically no side effects, safe for elderly populations.

Goal Dose Frequency Route
Immune restoration 10 mg Daily IM or SubQ
Standard cycle 10 mg Daily for 5-10 days IM or SubQ
Maintenance 10 mg 1-2x yearly cycles IM or SubQ
With Epithalamin 10 mg each Annual cycles IM or SubQ

Key Tips

  • Short 5-10 day cycles sufficient
  • No side effects in elderly populations
  • Can combine with other bioregulators
  • Annual cycles for maintenance
Materials Needed
Bacteriostatic water or sterile water Insulin syringes (1 mL) Alcohol swabs Peptide vial Sterile work surface
Steps
  1. 1 Clean work area and hands thoroughly
  2. 2 Calculate required water volume
  3. 3 Draw water into syringe
  4. 4 Inject slowly down vial side
  5. 5 Gently swirl until dissolved (never shake)
  6. 6 Store in refrigerator

Peptide Interactions

Epitalon

Synergistic

Combined use showed 4.1-fold mortality reduction vs 2.0-fold with Thymalin alone.

Vilon

Synergistic

Often used together for enhanced systemic recovery and immune support.

Thymosin Alpha-1

Compatible

Similar thymic origin; different mechanisms can complement each other.

BPC-157

Compatible

No known negative interactions; different mechanisms.

What to Expect

Days 1-5

Initial immune modulation begins

Days 5-10

T-cell activation and differentiation enhanced

Week 2-4

Improved immune markers on blood tests

Month 1-3

Reduced illness frequency

Long-term (years)

Geroprotective benefits with annual cycles

Side Effects & Safety

Common Side Effects

  • Injection site reactions (mild)
  • Practically no side effects reported

Stop Signs

  • Signs of allergic reaction
  • Unusual immune responses

Contraindications

  • Autoimmune diseases (use with caution)
  • Organ transplant recipients (immunosuppression needed)
  • Pregnancy or breastfeeding
  • Known hypersensitivity

Quality Checklist

Good Signs

  • White to off-white lyophilized powder
  • Clear solution after reconstitution
  • Intact vacuum seal

Warning Signs

  • Slight clumping that dissolves easily

Bad Signs

  • Discolored powder
  • Cloudy or particulate solution
  • Broken seal

Research & References

Key References

2021

The Use of Thymalin for Immunocorrection and Molecular Aspects of Biological Activity

Detailed molecular mechanisms of Thymalin's immunoprotective action through peptides KE, EW, EDP binding to DNA and histones.

2003

Peptides of Pineal Gland and Thymus Prolong Human Life

6-8 year study showed 2.0-2.1 fold mortality reduction with Thymalin; 4.1-fold when combined with Epithalamin.

2021

Peptide Drug Thymalin Regulates Immune Status in Severe COVID-19 Older Patients

Faster lymphopenia reversal and improved recovery of CD4+, CD3+HLA-DR+, B-cells, and NK-cells in COVID-19.

2018

Effect of Thymalin on Tumor and Thymus in Activation Therapy

Antitumor effects with tumor growth arrest in >50% of animals; growth suppressed by 78% in others.

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