ThePeptideGuide.uk LogoNavigation

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

Healing & Recovery
Preclinical

TB4-FRAG

TB4-FRAG

Also known as: TB-500 Fragment, TB4 Fragment 17-23, Ac-LKKTETQ

Overview

Key Facts

Primary Goal: Research and therapeutic applications of TB4-FRAG

Binds G-actin to promote cell motility. Modulates actin polymerization at injury sites.

Dosing Information

Half-Life

~1 hour

Typical Dose

250–750 mcg

Frequency

1x daily or every other day

Cycle Length

4-8 weeks

Administration Routes:
subcutaneousintramuscular

Benefits

  • Targeted tissue repair signaling
  • Promotes cell migration to injury sites
  • Anti-inflammatory properties
  • Smaller molecule size for better tissue penetration
  • Supports wound healing

Side Effects

Injection site irritationmild
Mild fatigue (rare)mild
Headache (uncommon)mild

Mechanism of Action

1

Binds G-actin to promote cell motility

2

Modulates actin polymerization at injury sites

3

Reduces NF-kB driven inflammatory signaling

Contraindications

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

  • Active malignancy
  • Pregnancy or breastfeeding
  • Known hypersensitivity to thymosin peptides

Storage & Reconstitution

Unreconstituted (Powder)

Temperature2–8°C (36–46°F) or -20°C (-4°F) for long-term
DurationUp to 3 months

Reconstituted (Mixed)

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

Research Summary

Preclinical

Preclinical research indicates that the active fragment retains the core actin-binding and cell-migration-promoting properties of full-length Thymosin Beta-4. Limited human data; primarily studied in vitro and in animal models.

Frequently Asked Questions

Common questions about TB4-FRAG

UK-Specific Information

Exclusive data points and guidance for UK residents using TB4-FRAG

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