ThePeptideGuide.uk LogoNavigation

Educational purposes only. Not medical advice. Consult healthcare professionals before use.

Healing & Recovery
Approved

Thymosin Alpha-1

Thymosin Alpha-1

Also known as: Ta1, Zadaxin, Thymalfasin

Overview

Key Facts

Primary Goal: Research and therapeutic applications of Thymosin Alpha-1

Stimulates T-cell progenitor differentiation via thymic pathways. Upregulates MHC class I expression on antigen-presenting cells.

Dosing Information

Half-Life

~2 hours

Typical Dose

1.6–3.2 mg

Frequency

2x per week

Cycle Length

8-12 weeks, may be used long-term under medical supervision

Administration Routes:
subcutaneous

Benefits

  • Enhances T-cell maturation and function
  • Augments dendritic cell and NK cell activity
  • Improves vaccine response in immunocompromised patients
  • Antiviral activity against hepatitis B and C
  • Adjunct therapy in certain cancers (melanoma, hepatocellular carcinoma)
  • Restores immune balance without overstimulation

Side Effects

Injection site redness or irritation (mild)mild
Fatigue (uncommon)mild
Mild flu-like symptoms during initial dosingmild
Rash (rare)mild

Mechanism of Action

1

Stimulates T-cell progenitor differentiation via thymic pathways

2

Upregulates MHC class I expression on antigen-presenting cells

3

Increases IL-2 and interferon-alpha production

4

Enhances toll-like receptor signaling in dendritic cells

5

Promotes CD4+ and CD8+ T-cell activation and proliferation

Contraindications

Do not use this peptide if any of the following apply:

  • Organ transplant recipients on immunosuppressants
  • Active autoimmune flare (may exacerbate)
  • Pregnancy or breastfeeding

Storage & Reconstitution

Unreconstituted (Powder)

Temperature2–8°C (36–46°F)
DurationUp to 3 months

Reconstituted (Mixed)

Temperature2–8°C (36–46°F)
Duration2-4 weeks

Research Summary

Approved
3 studies

Approved in over 35 countries for chronic hepatitis B/C and as a vaccine adjuvant. Granted FDA orphan drug designation. Extensive clinical trial data including Phase 3 studies in hepatitis and Phase 2 studies as cancer immunotherapy adjunct. SciClone Pharmaceuticals conducted large-scale RCTs demonstrating improved viral clearance and immune reconstitution.

Frequently Asked Questions

Common questions about Thymosin Alpha-1

UK-Specific Information

Exclusive data points and guidance for UK residents using Thymosin Alpha-1

UK Lab Testing

UK Lab Testing

Recommended labs: Medichecks, Thriva (£89-£149 for peptide safety panel)

Why this matters: UK-specific lab testing guidance not available on US competitor sites

Commonly Stacked With

Share on TikTok

Generate a trackable link to share this peptide information on TikTok