TB-500 Fragment (17-23) 10 mg
Peptide Hubs

TB-500 Fragment (17-23) 10 mg

Product Details Peptide Hubs
Active Substance TB-500 Fragment (17–23) Thymosin β4-derived fragment
Strength 10 mg per vial
Package 1 × 2 mL vial 10 mg labeled content
Form Lyophilized powder
Research Class Actin-binding peptide fragment 7-amino-acid heptapeptide
Peptide Sequence Ac-LKKTETQ Ac-Leu-Lys-Lys-Thr-Glu-Thr-Gln
Parent Peptide Thymosin β4 Corresponds to residues 17–23
Research Area Actin dynamics & cell migration Tissue-repair and angiogenesis models
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TB-500 Fragment (17–23) 10 mg – Tissue Repair Peptide by Peptide Hubs

TB-500 Fragment (17–23) is a truncated version of the full-length thymosin beta-4 peptide, designed for enhanced precision in tissue-specific research applications. Offered in a 10 mg/vial (2 mL) format by Peptide Hubs, this peptide fragment has shown potential in promoting cell migration, wound healing, and inflammation modulation in preclinical models.

What Is TB-500 Fragment (17–23)?

This peptide consists of amino acids 17 through 23 of the TB-500 (Thymosin Beta-4) sequence – believed to be the most bioactive domain. By isolating this fragment, researchers can focus on targeted regenerative effects without broader interactions seen with the full-length peptide. It retains actin-binding functionality, crucial for mobilizing cells during tissue recovery and regeneration.

According to research on actin-sequestering peptides, the 17–23 domain may be central to TB-500's biological activities, especially in wound closure and angiogenesis models.

Benefits in Research Settings

  • Enhances cell migration and tissue remodeling
  • Promotes wound healing and recovery
  • Supports vascularization (angiogenesis)
  • Reduces inflammatory response in damaged tissue
  • High bioactivity in a focused sequence

Technical Details

Peptide Type
N-Acetylated Synthetic Heptapeptide
Peptide Sequence
Ac-Leu-Lys-Lys-Thr-Glu-Thr-Gln-OH
Peptide Length
7 Amino-Acid Residues
Structural Origin
Thymosin β4 Residues 17–23
Terminal Form
N-Acetylated · C-Terminal Free Acid
Molecular Formula
C₃₈H₆₈N₁₀O₁₄
Molecular Weight
889.0 g/mol
Parent Peptide
Thymosin β4
Parent Functional Region
LKKTETQ Actin-Binding Region
Research Status
Experimental / Preclinical

Dosage & Usage Guidelines

In preclinical animal studies, TB-500 Fragment (17–23) is used at doses of 2–5 mg per week, administered subcutaneously or intramuscularly. Typical research durations range from 2 to 4 weeks depending on the tissue recovery model. Due to its small molecular size, this fragment is rapidly absorbed and acts systemically.

Recommended Stack for Advanced Peptide Studies

For enhanced results in tissue repair and inflammation models, researchers often pair TB-500 Fragment (17–23) with:

  • BPC-157 – known for synergistic effects on tendon, ligament, and muscle repair
  • Thymosin Alpha-1 – for immune regulation and systemic recovery
  • SS-31 – for mitochondrial support during injury recovery
  • Ipamorelin – a growth hormone secretagogue to promote regenerative pathways

Safety and Research Profile

As a synthetic peptide fragment, TB-500 (17–23) is non-toxic, non-hormonal, and has not demonstrated adverse side effects in laboratory models. It does not interfere with hepatic, renal, or hormonal functions. Mild injection site irritation may occur with improper dilution or technique. Always follow lab safety protocols when reconstituting with bacteriostatic water or similar solvents.

USA Shipping and Research-Grade Quality

Peptide Hubs provides USA domestic shipping for TB-500 Fragment (17–23) 10 mg, ensuring fast and discreet delivery for certified labs and research institutions. All peptide products are manufactured under GMP-compliant conditions for research use only. Explore our complete regenerative category including GHK-Cu 50 mg and CJC-1295 no DAC.

Shipping & Product Authenticity

USA Domestic
4–5 business days
International
13–15 business days
Order Processing
24–48 business hours
Tracking
Tracking number provided
Direct Supply & Discreet Delivery

This product is supplied through the official Peptide Hubs distribution chain and shipped in original manufacturer packaging. The outer shipping package remains discreet, with privacy-focused handling and no unnecessary external product details.

What to Expect

  • ✔ Orders are processed after payment confirmation
  • ✔ USA Domestic shipping is typically faster when local stock is selected
  • ✔ International orders include tracking, though update frequency may vary by destination
  • ✔ Multiple warehouses may result in separate shipments when applicable
Authenticity support: official Peptide Hubs presentation, batch-linked lab proof, and original packaging help reinforce product legitimacy and buyer confidence.
Verified Supply

For complete delivery details, tracking policy, and reshipment terms, please see our Shipping Info page.

Storage

Store the lyophilized powder at controlled room temperature (15–25°C) in a dry, dark place, away from direct light and moisture. The unopened vial should be kept in its original packaging to maintain stability.

After reconstitution, store the solution at 2–8°C and use within 14 days. Do not freeze. Discard any unused portion after the recommended storage period. Before use, inspect the solution and avoid use if it appears cloudy, discolored, or contains particulate matter, or if the vial or seal is compromised.

Keep out of reach of children. Follow proper handling and sterile injection practices during research use.

Proper storage conditions help maintain product stability and consistent performance across the product's shelf life.

Frequently Asked Questions

What is TB-500 Fragment (17–23) used for in research?

It is studied for its regenerative and healing effects, particularly its ability to enhance cell migration and tissue repair without affecting hormones.

How is TB-500 Fragment (17–23) different from full TB-500?

The fragment focuses solely on the active region (amino acids 17–23), offering targeted benefits with potentially fewer off-target effects than the full-length peptide.

Is TB-500 Fragment (17–23) safe in research models?

Yes, it has shown no toxicity or hormonal disruption in preclinical studies. Proper handling and sterile reconstitution are essential.

Can this peptide be combined with other compounds?

Yes. It is commonly stacked with BPC-157, Thymosin Alpha-1, or SS-31 to expand research scope in regenerative protocols.

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