PreclinicalHealing

TB-500 for Hair Growth

Research, mechanism, dosing, and effectiveness of TB-500 for hair growth.

Quick Answer

TB-500 may promote hair growth by enhancing blood flow to hair follicles.

Evidence Level

Animal Studies

Typical Dose

2 mg weekly

Results Timeline

3-6 months for hair growth effects

FDA Status

Research Only

How TB-500 Works for Hair Growth

Angiogenesis and cell migration support hair follicle health.

About Hair Growth

Stimulation of hair follicles and prevention of hair loss.

Research Evidence

Animal studies show significant wound healing acceleration, cardiac tissue repair, and anti-inflammatory effects. Note: Phase 2 human trials exist for full Thymosin Beta-4 protein (not TB-500 specifically) - 73-patient venous stasis ulcer trial showed ~25% achieved complete healing at 3 months. Ophthalmologic trials for dry eye also completed. However, TB-500 fragment itself has no human clinical trials. FDA restricted TB-500 from compounding under Category 2. WADA prohibited at all times.

Clinical Status:Preclinical - No human clinical trials. FDA Category 2 (pending reclassification to Category 1 per April 15, 2026 HHS announcement; remains Category 2 under current law until formal FDA rule; PCAC review July 23-24, 2026)

Dosing for Hair Growth

Recommended Dose

2 mg weekly

Frequency

2x weekly for 4-6 weeks, then 1x weekly

Administration

Subcutaneous or intramuscular injection

Duration

4-6 weeks loading, then maintenance

Note: Loading phase builds up tissue levels. Maintenance phase sustains benefits. Often stacked with BPC-157 for injury recovery.

What to Expect

Week 1-2

Initial adjustment period. Some users may notice subtle changes.

Week 3-4

Early benefits often become noticeable. Continue consistent use.

Week 5-8

Most users report meaningful improvements by this point.

2-3 Months

Full effects typically realized. Reassess and adjust as needed.

Possible Side Effects

Not everyone experiences these. Individual responses vary.

  • Generally well-tolerated in preclinical studies
  • Injection site reactions
  • Headache
  • Fatigue
  • Nausea
  • May trigger histamine release - use caution with MCAS or histamine sensitivity

Frequently Asked Questions

Does TB-500 help with hair growth?

TB-500 may promote hair growth by enhancing blood flow to hair follicles.

How does TB-500 work for hair growth?

Angiogenesis and cell migration support hair follicle health....

What dose of TB-500 should I use for hair growth?

2 mg weekly

How long until I see results?

3-6 months for hair growth effects