This content is for educational purposes only. Not medical advice. Always consult a licensed healthcare professional before using any peptides.

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RecoveryLow RiskNot FDA-approved. Research compound.

TB-500

The Repair Signal

Thymosin Beta-4 fragment (TB-500) is a naturally occurring peptide present in nearly all human cells. It upregulates actin, a cell-building protein, promoting migration and proliferation of cells to repair damaged tissue. Exceptional for muscle tears, tendon injuries, and cardiovascular repair.

If You Take This

  • Promotes cellular migration to injury sites
  • Reduces systemic inflammation
  • Improves flexibility and range of motion
  • Supports cardiac tissue repair
  • Accelerates muscle fiber recovery
  • Regulates wound healing and scar reduction

Protocol

Dosing
2-2.5 mg twice per week during loading phase (weeks 1-4), then 2 mg once per week for maintenance.
Cycle Length
8-12 weeks. Loading phase of 4 weeks followed by 4-8 week maintenance.
Half-Life
6 hours
Best Time
Evening, post-workout
Method
Subcutaneous or intramuscular injection

Stacks Well With

BPC-157GHK-CuCJC-1295

Avoid With

Avoid if on blood thinners — may promote angiogenesis

Side Effects

  • Temporary head rush after injection
  • Mild lethargy first few days
  • Injection site irritation

Where to Buy

PepStack Price Guarantee

We track prices across 5+ verified vendors so you don't have to. Every vendor is vetted for purity testing, third-party COAs, and shipping reliability.

Prices last verified: April 3, 2026

Core Peptides

★ 4.8
BEST PRICE
$1.40
Vial
5mg
Purity
99%
Shipping
2-3 business days
Status
In Stock
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Apollo Peptide Sciences

★ 4.6
$46.99
Vial
500mg
Purity
98%+
Shipping
3-5 business days
Status
In Stock
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★ 4.3
$49.99
Vial
5mg
Purity
≥99%
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—
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In Stock
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★ 4.4
$65.00
Vial
10mg
Purity
≥99%
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—
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In Stock
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Ascension Peptides

★ 4.7
$89.98
Vial
5mg
Purity
99%+
Shipping
2-4 business days
Status
In Stock
MYPEPSTACK
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DT Peptides

★ 4.3
$169.00
Vial
50mg
Purity
99%
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—
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In Stock
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Biotech Peptides

★ 4.4
$305.00
Vial
70mg
Purity
99%
Shipping
2-5 business days
Status
In Stock
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For educational and informational purposes only. Not medical advice. Always consult a healthcare provider before starting any peptide protocol.