
TB-500
Thymosin β4 fragment: mobility and recovery.
iThe essentials in 10 seconds
- Active fragment of Thymosin β4, a repair protein present in the body
- Promotes mobility, tissue flexibility and recovery
- Subcutaneous injection, in a course of a few weeks
- Complement to BPC-157 for tendon-muscle repair
IWhat is TB-500?
TB-500 is a fragment of Thymosin β4, a protein involved in tissue repair. It promotes cell migration to injured areas, the formation of new vessels and tissue flexibility. It is used for recovery and mobility (tendons, muscles, joints).
Peptide off-label, use reserved for a supervised medical setting. Limited human data: benefits are mainly based on practice and preclinical models.
The molecules presented on this site are innovative and fall under experimental use. Human data remain limited: a studied mechanism or a preclinical observation is not sufficient to demonstrate a benefit. The regulatory status in Morocco is not established for most of these peptides. Any use is decided within the framework of a medical consultation, with follow-up — never alone, never without an assessment.
IIThe benefits
Improves tissue elasticity and joint mobility.
Supports muscle and tendon repair after exertion and shortens recovery.
Promotes vessel formation (angiogenesis) in areas under repair.
Reduces inflammation and stiffness in injured areas.
Attracts repair cells to the injury site.
Combines with BPC-157 for complete repair coverage.
IIIRecommendations & how to use
Route: subcutaneous injection (abdomen or thigh) · Frequency: injections spaced out during the week, in a course · Storage: refrigerated (2–8 °C).
To be combined with rehabilitation and rest when indicated.
| Dosage | Price |
|---|---|
| 5 mg | Provided on request |
| 10 mg | Provided on request |
Prices are not published online: they are provided on request, during a consultation or by telephone.

IVThe two protocols
Goal: support tissue repair and reduce stiffness after an injury.
Monitoring: pain, mobility, exercise capacity.
Goal: maintain flexibility and prevent injuries in athletes.
Combine with: warm-up, stretching, protein, sleep.
VProtocol rules
- Rehabilitation and rest when indicated
- Hydration and protein
- Regular sleep
- Note pain and mobility
- Store vials in the refrigerator
- No self-injection without medical training
- Do not force a healing area
- Do not chain courses without a break
- Never mix peptides in the same vial
- Progressive cancer: contraindication
VIYour journey in 3 steps
Evaluation, contraindications, injection training, protocol provided.
Spaced injections, monitoring of mobility and recovery.
Assessment, decision on what comes next (break or new course).
VIISide effects & level of evidence
- Injection-site reaction
- Headache
- Fatigue
- Dizziness, nausea
- Active cancer or cancer history
- Pregnancy, breastfeeding
- Children and adolescents
- Hypersensitivity
Non-exhaustive list based on the available literature and known class effects; it replaces neither a product label nor an individual medical assessment.
VIIIPublications & references
- Thymosin β(4) and β(10) Expression in Human Organs during Development: A ReviewFaa et al. · Cells · 2024 · PMID 38994967
- Thymosin beta 4 as an Alzheimer disease intervention target identified using human brain organoidsZeng et al. · Stem Cell Reports · 2025 · PMID 40816274
- Thymosin beta-4 denotes new directions towards developing prosperous anti-aging regenerative therapiesBock-Marquette et al. · Int Immunopharmacol · 2023 · PMID 36709593
Documentary references: the existence of a publication establishes neither efficacy nor safety for personal use. The regulatory status in Morocco must be verified.