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    Injury, Repair & RecoveryPreclinical

    TB-500 (Thymosin Beta-4) Dosage Guide: Protocols, Calculator & Safety

    Everything you need to know about TB-500 (Thymosin Beta-4) dosing — protocols, safety, and where to buy.

    Dose Range

    2,000–5,000 mcg (2–5 mg) per injection

    Frequency

    2x per week during loading; 1x per week maintenance

    Cycle Length

    4–8 weeks loading, then 2–4 weeks maintenance

    Half-Life

    ~2–3 hours

    Administration Routes

    SubcutaneousIntramuscular

    Quick Reconstitution Calculator

    Calculate syringe units instantly

    Syringe Draw

    10.0 units

    2500 mcg/ml · 0.100 ml draw

    Full Tool

    Dosing Protocols

    Beginner
    2.5 mg subcutaneous injection twice per week for 4–6 weeks. Space injections 3–4 days apart.
    Standard
    5 mg subcutaneous twice per week for 6 weeks loading, then 2.5 mg once per week for 4 weeks maintenance.
    Advanced
    5 mg subcutaneous twice per week for 8 weeks, stacked with BPC-157 (500 mcg 2x/day). Transition to 5 mg once weekly for ongoing maintenance.

    Weight-Based Dosing

    Not typically weight-based. Standard flat dosing of 2–5 mg per injection.

    Commonly Stacked With

    Stacks synergistically with BPC-157 for comprehensive soft tissue repair (Wolverine Stack: 500 mcg BPC-157 + 2 mg TB-500 twice weekly). Can be combined with GHK-Cu for skin and connective tissue repair.

    Side Effects & Safety

    Generally well-tolerated. Occasional mild headache, nausea, or lethargy. Localized irritation at injection site. Rare: flu-like symptoms, temporary fatigue during initial use.

    Contraindications

    Active cancer (theoretical concern with tissue growth promotion). Pregnancy or breastfeeding. Known hypersensitivity to thymosin beta-4 fragments.

    Check interactions with the Interaction Checker →

    Additional Notes

    Reconstitute with bacteriostatic water. A 5mg vial with 1mL BAC water = 5mg per mL. TB-500 is systemic and does not need to be injected near the injury site. Store reconstituted vials refrigerated (2–8°C) and use within 3–4 weeks.

    Where to Buy TB-500 (Thymosin Beta-4)

    Compare 4 listings across 4 vendors — from $34.99

    Frequently Asked Questions

    What is the recommended TB-500 (Thymosin Beta-4) dosage?

    The typical dose range for TB-500 (Thymosin Beta-4) is 2,000–5,000 mcg (2–5 mg) per injection. It is usually administered 2x per week during loading; 1x per week maintenance. Always start with the lowest effective dose.

    How often should I take TB-500 (Thymosin Beta-4)?

    2x per week during loading; 1x per week maintenance

    Does TB-500 (Thymosin Beta-4) need to be cycled?

    Yes, typical cycle length is 4–8 weeks loading, then 2–4 weeks maintenance.

    What are TB-500 (Thymosin Beta-4) side effects?

    Generally well-tolerated. Occasional mild headache, nausea, or lethargy. Localized irritation at injection site. Rare: flu-like symptoms, temporary fatigue during initial use.

    Where can I buy TB-500 (Thymosin Beta-4)?

    Compare 4 listings from 4 vendors on our price comparison page — starting from $34.99.

    TB-500 (Thymosin Beta-4) Full Profile

    Research data, mechanisms, and pricing

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