TB-500

FDA APPROVAL PENDING

Well Studied

Healing

Longevity

TB-500

Synthetic Fragment (17-23) of Thymosin Beta-4

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Healing

TB-500

Longevity

Amino acid sequence

7

Amino acids

949.1da

Molecular weight

Peptide

Type

A synthetic 7-amino acid fragment corresponding to the actin-binding region of thymosin beta-4, originally developed for equine use with retained tissue repair properties. TB-500 acts as principal actin-sequestering protein, regulating cell migration, promoting angiogenesis, reducing inflammation, and activating stem cell differentiation.

Top researched benefits

Overview of TB-500

Acts as principal actin-sequestering protein, regulating cell migration, promoting angiogenesis, reducing inflammation, and activating stem cell differentiation for comprehensive regenerative effects.

tissue repair

  • Accelerated healing of muscle fibers with reduced recovery time and enhanced repair via cell migration and differentiation.
  • Connective tissue repair with reduced scar formation and improved biomechanical properties of healing tissues.
  • Enhanced dermal closure, improved angiogenesis, and reduced inflammation in acute and chronic scenarios.

athletic recovery

  • Faster recovery from intense training with reduced muscle soreness and improved tissue repair.
  • Strengthened tissues through enhanced repair mechanisms may reduce injury risk.
  • Improved muscle quality through enhanced regeneration and repair pathways.

neurological

  • Protective effects against neuronal damage in various models.
  • Preclinical evidence for improved outcomes in spinal injury models.
  • Potential neuroprotective and regenerative effects on brain tissue.

Typical Dose

2-5mg per injection (higher doses for serious injuries)

Frequency

2-3x weekly (e.g., Monday, Wednesday, Friday)

Cycle Duration

6-8 weeks for active healing

Storage

Reconstituted: 2-8°C, use within 28 days

Chemical Makeup

Key benefits

Superior systemic tissue repair

Accelerated muscle, tendon, and ligament healing

Enhanced cell migration and angiogenesis

Comprehensive regenerative effects

Neuroprotective properties

Community interest

This peptide is still gaining traction in the community.

Synthetic Fragment (17-23) of Thymosin Beta-4

This overview is informational and based on aggregated descriptions from studies and user reports.

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TB-500 Molecular Information

View the scientifc details of TB-500.

7

Amino Acids

TB-500

Leu

Leu

Position 1

Lys

Lys

Position 2

Lys

Lys

Position 3

Thr

Thr

Position 4

Glu

Glu

Position 5

Thr

Thr

Position 6

Gln

Gln

Position 7

Amino acid sequence
LeucinePosition 1
LysinePosition 2
LysinePosition 3
ThreoninePosition 4
Glutamic acidPosition 5
ThreoninePosition 6
GlutaminePosition 7

Molecular Weight

949.1Da

Chain Length

7Amino Acids

Type

Peptide

TB-500 Protocols

Subcutaneous or intramuscular injection. Flexible timing with no empty stomach requirement. Can be injected near injury site for localized effect.

GoalDosageFrequencyRoute
General tissue repair22 week rangeSubQ or IM
Serious injury recovery43 week rangeSubQ near injury site
Athletic enhancement22 week rangeSubQ
Chronic conditions32 week rangeSubQ or IM
Maintenance21 week rangeSubQ
Post-surgical recovery33 week rangeSubQ

Reconstitution Instructions

Materials needed:

Bacteriostatic water (BAC)Insulin syringes (1mL recommended)Alcohol swabsTB-500 vial (2mg or 5mg typical)Sterile work surface

Steps to reconstitute

  1. Clean work area and hands thoroughly with alcohol
  2. Calculate required BAC water volume
  3. Draw calculated BAC water slowly into syringe
  4. Inject BAC water slowly down vial side (never directly on powder)
  5. Gently swirl vial until powder completely dissolves
  6. Store reconstituted solution refrigerated, use within 28 days

TB-500 Cycle

The TB-500 Cycle section explains how long a typical cycle lasts and what to expect during each phase. Over time, your body can become less responsive with continuous use.

Taking breaks between cycles may help maintain effectiveness and support better overall results.

Week 1-2
Reduced inflammation and improved tissue sensation
Week 2-4
Accelerated healing rate and improved tissue quality
Week 4-8
Maximum tissue repair and regenerative benefits
Week 6-12
Continued improvement in tissue strength and function

Dosing tools

TB-500 Peptide Dosage Calculator

Calculate peptide doses with our visual syringe guide.

mg

Enter the total amount of peptide in the vial in milligrams (as stated on the label).

The dose you want to inject per administration, in mcg or mg.

1,000 mcg = 1 mg

1 mL

2 mL

3 mL

5 mL

Custom

Volume of bacteriostatic water you add to reconstitute the powder. Use BAC water for preservation.

Injection Results

Based on your vial and dilution inputs.

TB-500

SINGLE COMPOUND

Volume per injection

0.05

mL

Concentration

10.00

mg/mL

Doses per vial

20

doses

Total injections per vial

20 injections

How it works

Based on a 10 mg TB-500 vial diluted with 1 mL of bacteriostatic water, each 500 mcg injection equals 0.05 mL.

1mL / 100 units

5 units

0.050 mL

Reference Guide

Dosing Cycle

Peptide
TB-500
Dosing
2-5mg per injection (higher doses for serious injuries)
Dosing Frequency
2-3x weekly (e.g., Monday, Wednesday, Friday)
Cycle Duration
6-8 weeks for active healing
Storage
Reconstituted: 2-8°C, use within 28 days

Note: Triple agonist; microdose for fewer side effects

Reconstitution Tips

  • Use bacteriostatic water (BAC)contains 0.9% benzyl alcohol for preservation
  • Inject water slowlyaim down the vial wall, not directly onto powder
  • Never shakegently swirl or roll the vial until dissolved
  • Store properlyrefrigerate at 2-8°C after reconstitution
  • Use within 28 daysmost reconstituted peptides remain stable for about 4 weeks
  • Keep sterilealways clean vial tops with alcohol before drawing

Peptide Interactions

Research suggestions of TB-500 interactions with other common peptides and substances.

Healing

bpc

Longevity

BPC-157

SYNERGISTIC

Complementary healing mechanisms with enhanced tissue repair when combined (Wolverine Stack).

SYNERGISTIC

Weight

ghrp

Growth

GHRP-6

COMPATIBLE

No negative interactions; potential enhanced recovery.

COMPATIBLE

Weight

ipa

Growth

Ipamorelin

COMPATIBLE

May enhance tissue sensitivity to growth hormone effects.

COMPATIBLE

Skin

mela

Sexual

Melanotan II

COMPATIBLE

Different receptor families with no pathway overlap.

COMPATIBLE

Side effects

Contraindications

Active cancer treatment (due to angiogenic effects)

Pregnancy or breastfeeding

Immunosuppressive medications (consult provider)

WADA prohibited for competitive athletes

Stop signs

Persistent or worsening injection site infections

Unusual swelling or prolonged redness

Severe allergic reactions

Unexpected systemic symptoms

Concerning health changes

Bad signs

Colored or crystalline powder (yellow/brown indicates degradation)Persistent cloudiness, floating particles, or precipitationDamaged vial seal or contamination signs
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Frequently asked questions

What is a peptide dosage calculator?

A peptide dosage calculator is a free tool that converts your vial size, bacteriostatic water volume, and target dose into an exact syringe draw volume. Instead of doing the reconstitution math by hand, you enter three inputs and instantly get the concentration of your solution and how many milliliters or syringeunits to draw. This calculator works for single peptide compounds and multi-peptide blends.

How do I calculate peptide dosage from a vial?

To calculate your peptide dose, divide the total peptide content of your vial in micrograms by the volume of bacteriostatic water you added in milliliters. This gives you your solution concentration in mcg/mL. Then divide your target dose by that concentration to get your draw volume. For example, a 5mg (5,000 mcg) vial reconstituted with 2mL of BAC water gives a concentration of 2,500 mcg/mL. A 250 mcg dose would require drawing 0.1mL. This calculator automates all of those steps instantly.

How much Bacteriostatic water should I add to a peptide vial?

Most people add 2mL to 3mL of bacteriostatic water per vial, but the right amount depends on the dose you want to draw and the syringe size you are using. Adding 1mL to a 5mg vial gives you a concentration of 5,000 mcg/mL, making each dose very small in volume. Adding 2mL gives you 2,500 mcg/mL, which is easier to measure on a standard insulin syringe. A general guideline is to choose a volume that puts your typical dose somewhere between 10 and 30 units on a U-100 syringe. Use the calculator above to test different water volumes and find what works for your dose.

How are peptides different from proteins?

Both are made of amino acids, but peptides are much smaller than proteins. Because of their tiny size, peptides can act like tiny messengers in the body, sending specific signals to your cells to tell them exactly what to do.​

TB-500Research References

TB-500 is a well studied compound

4Research references

TB-500

TB-500 is a well studied compound

Dermal Wound Healing Study

Significant acceleration in wound healing rates in patients with chronic pressure ulcers and venous stasis ulcers compared to placebo in Phase 2 human trial.

2012

Cardiac Tissue Regeneration

TB-500 pre-treated endothelial cells improved left ventricular function by greater than 50% in post-MI subjects in human clinical trial.

2016

Muscle Fiber Regeneration

Improved skeletal muscle fiber regeneration in dystrophin-deficient mice, showing potential for muscular dystrophy treatment.

2015

Corneal Healing Research

Topical TB-500 significantly improved signs and symptoms of moderate to severe dry eye with lasting effects in Phase 2 human trial.

2014