TB-500 Dosing Guide
⚠️ Research Use Only
Important: TB-500 is not FDA-approved for human use. This information is for educational purposes only. All dosing information is based on animal research and anecdotal reports. Consult healthcare providers before use.
TB-500 (Thymosin Beta-4 fragment) dosing is typically based on body weight and follows a loading/maintenance protocol structure. Due to its long half-life (~10 days), TB-500 requires less frequent administration than many other peptides, typically 1-2 times per week.
TB-500 Dosing Calculator
Use this calculator to determine your personalized TB-500 dose based on body weight and treatment goals:
Weight-Based TB-500 Dose Calculator
Standard Dosing Protocols
Loading Phase (Weeks 1-4 to 1-6)
The loading phase uses higher doses administered twice weekly to rapidly saturate tissues and achieve therapeutic levels:
- Conservative: 2-5 mg twice weekly (4-10 mg/week total)
- Standard: 5-7.5 mg twice weekly (10-15 mg/week total)
- Intensive: 7.5-10 mg twice weekly (15-20 mg/week total)
Schedule: Monday/Thursday or Tuesday/Friday (3-4 days apart)
Duration: 4-6 weeks, then transition to maintenance
Maintenance Phase (Weeks 5-12+)
After loading, reduce frequency to once weekly while maintaining therapeutic effects:
- Conservative: 2-5 mg once weekly
- Standard: 5-7.5 mg once weekly
- Intensive: 7.5-10 mg once weekly
Schedule: Same day each week (e.g., every Monday)
Duration: 8-12 weeks total treatment, then reassess
Cycling Recommendations
- Acute Injuries: 8-12 week protocol, then stop if healed
- Chronic Conditions: 12 weeks on, 4-8 weeks off, repeat as needed
- Prevention/Maintenance: Lower doses (2-5 mg) weekly ongoing, or cycle 8 weeks on/4 weeks off
- Athletic Performance: Use during intense training blocks, cycle off during deload periods
Condition-Specific Dosing
Acute Injuries (Muscle Tears, Sprains, Strains)
- Loading: 7.5-10 mg twice weekly for 4 weeks
- Maintenance: 5-7.5 mg once weekly for 4-8 weeks
- Total Duration: 8-12 weeks
- Expected Results: Accelerated healing, reduced inflammation, improved tissue quality
Chronic Tendinopathy (Tendonitis, Tendinosis)
- Loading: 5-7.5 mg twice weekly for 6 weeks
- Maintenance: 5 mg once weekly for 6-12 weeks
- Total Duration: 12-18 weeks (chronic conditions require longer treatment)
- Expected Results: Gradual improvement over months, reduced pain, improved function
Post-Surgical Recovery
- Pre-Surgery: 5-7.5 mg twice weekly for 2 weeks before surgery (if possible)
- Post-Surgery: 7.5-10 mg twice weekly starting 3-7 days post-op for 4-6 weeks
- Maintenance: 5-7.5 mg once weekly for 4-8 weeks
- Expected Results: Faster wound healing, reduced scarring, improved tissue quality
Hair Regrowth
- Loading: 2-5 mg twice weekly for 4-8 weeks
- Maintenance: 2-5 mg once weekly for 12-24 weeks
- Total Duration: 6-12 months for visible results
- Expected Results: Improved scalp blood flow, follicle regeneration (combine with topical GHK-Cu)
Cardiovascular Health / Post-MI
- Loading: 5-10 mg twice weekly for 4-6 weeks
- Maintenance: 5 mg once weekly for 8-12 weeks
- Note: Requires medical supervision, based on animal cardiac research
- Expected Results: Improved cardiac function, reduced scar tissue, enhanced angiogenesis
Administration Guidelines
Reconstitution Instructions
- Materials Needed:
- TB-500 lyophilized powder (typically 5mg vial)
- Bacteriostatic water (2ml recommended)
- Alcohol swabs
- Insulin syringes (1ml with 29-31 gauge needles)
- Reconstitution Process:
- Clean vial tops with alcohol swabs
- Draw 2ml bacteriostatic water into syringe
- Slowly inject water into TB-500 vial (aim for side of vial, not directly on powder)
- Gently swirl (do not shake) until powder dissolves completely (1-2 minutes)
- Solution should be clear and colorless
- Concentration: 2ml in 5mg vial = 2.5 mg/ml
- 0.1 ml (10 units) = 0.25 mg
- 0.2 ml (20 units) = 0.5 mg
- 0.4 ml (40 units) = 1 mg
- 1.0 ml (100 units) = 2.5 mg
- 2.0 ml (200 units) = 5 mg
- Storage: Refrigerate immediately, use within 30 days
Injection Technique
Subcutaneous Injection (Most Common)
- Clean injection site with alcohol swab (abdomen, thigh, or upper arm)
- Pinch skin to create a fold
- Insert needle at 45-90 degree angle
- Inject slowly over 5-10 seconds
- Withdraw needle and apply gentle pressure
- Rotate injection sites to prevent tissue irritation
Intramuscular Injection (Alternative)
- Common sites: Deltoid (shoulder), vastus lateralis (thigh), gluteus (buttock)
- Clean site with alcohol swab
- Insert needle at 90 degree angle into muscle
- Aspirate slightly to ensure not in blood vessel
- Inject slowly, withdraw, apply pressure
Timing Considerations
- Time of Day: No specific requirement, but consistency helps
- With Food: Can be taken with or without food
- Pre/Post Workout: Some prefer post-workout for recovery, but timing is flexible
- Before Bed: Aligns with natural tissue repair during sleep
Combining TB-500 with Other Peptides
TB-500 + BPC-157 (Most Popular Stack)
Synergistic Effects: Complementary healing mechanisms
- TB-500: 5-7.5 mg twice weekly (loading) or once weekly (maintenance)
- BPC-157: 250-500 mcg twice daily
- Benefits: TB-500 promotes angiogenesis and stem cell migration, BPC-157 enhances local healing and reduces inflammation
- Best For: Acute injuries, post-surgical recovery, chronic tendinopathy
- Duration: 8-12 weeks combined protocol
TB-500 + GHK-Cu (Hair Regrowth Stack)
- TB-500: 2-5 mg once weekly (systemic effects)
- GHK-Cu: 2% topical solution twice daily to scalp
- Benefits: TB-500 improves scalp blood flow, GHK-Cu stimulates follicles directly
- Duration: 6-12 months for visible results
TB-500 + Growth Hormone Peptides
- TB-500: 5 mg once weekly
- CJC-1295/Ipamorelin: Standard dosing protocols
- Benefits: Enhanced tissue repair, improved recovery, synergistic anabolic effects
- Best For: Athletic performance, injury prevention, anti-aging
Expected Timeline and Results
Week-by-Week Progression
- Week 1-2: Minimal noticeable effects, peptide accumulating in tissues
- Week 2-3: Reduced inflammation, improved range of motion, decreased pain
- Week 3-4: Noticeable healing progress, improved tissue quality
- Week 4-8: Continued improvement, tissue remodeling, strength gains
- Week 8-12: Maximum benefits, sustained healing, reduced need for ongoing treatment
Factors Affecting Results
- Injury Severity: Acute injuries respond faster than chronic conditions
- Age: Younger individuals typically see faster results
- Overall Health: Good nutrition, sleep, and stress management enhance results
- Dose: Higher doses may produce faster results but increase cost
- Consistency: Regular dosing schedule critical for sustained benefits
- Combination Therapy: Stacking with BPC-157 or other peptides enhances outcomes
Safety and Monitoring
Common Side Effects
- Injection Site Reactions: Redness, mild swelling, temporary discomfort (5-10% of users)
- Fatigue: Temporary tiredness, especially in first 1-2 weeks (10-15% of users)
- Headache: Mild, transient headaches (5% of users)
- Flushing: Temporary facial flushing (rare)
Rare/Serious Concerns
- Cancer Concerns: Theoretical risk due to angiogenesis promotion (no human data)
- Contraindication: Active cancer or history of cancer (avoid use)
- Pregnancy/Breastfeeding: No safety data, avoid use
Monitoring Recommendations
- Baseline Assessment: Document injury/condition before starting
- Weekly Check-ins: Track pain levels, range of motion, function
- Photos: Take photos of visible injuries for comparison
- Blood Work: Consider baseline and follow-up labs if using long-term
- Medical Supervision: Recommended for serious injuries or conditions
Troubleshooting
Not Seeing Results After 4 Weeks?
- Increase dose by 2.5-5 mg per injection
- Ensure proper reconstitution and storage
- Verify peptide quality and purity (should be >98%)
- Consider adding BPC-157 for synergistic effects
- Extend loading phase to 6-8 weeks
- Address underlying factors (nutrition, sleep, stress)
Excessive Fatigue?
- Reduce dose by 25-50%
- Inject in evening rather than morning
- Ensure adequate sleep and recovery
- Typically resolves after 2-3 weeks
Injection Site Reactions?
- Rotate injection sites more frequently
- Ensure proper injection technique
- Allow reconstituted solution to reach room temperature before injecting
- Consider switching from SubQ to IM injection
Results Plateaued?
- May have reached maximum benefit for current injury
- Consider transitioning to maintenance dose
- Take 2-4 week break, then restart if needed
- Add complementary therapies (physical therapy, etc.)
Cost Considerations
Typical Costs
- 5mg Vial: $30-60 (depending on source and quality)
- Loading Phase: $120-240/month (10-20 mg/week)
- Maintenance Phase: $60-120/month (5-10 mg/week)
- 8-Week Protocol: $400-800 total
- 12-Week Protocol: $600-1,200 total
Cost-Saving Strategies
- Buy in bulk (multiple vials at once for discount)
- Use conservative dosing (still effective for many)
- Transition to maintenance phase as soon as appropriate
- Cycle protocols rather than continuous use
- Combine with lower-cost peptides like BPC-157