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BPC-157 vs Thymosin beta-4

Updated 9 sources

Key differences

  1. 1Thymosin beta-4 works through actin and cell migration; BPC-157 through growth-factor and blood-vessel signalling.
  2. 2Thymosin beta-4 has Phase 2 wound and Phase 3 eye trials; BPC-157 has small case series.

Side by side

Facts from each record, in the same words as their own pages.
BPC-157 and Thymosin beta-4 side by side
BPC-157Thymosin beta-4
Category
  • Healing & recovery
  • Healing & recovery
Evidence
  • Limited human data
  • Some human trials
FDA status
  • Not FDA approvedRegulatory
  • In clinical trialsRegulatory
WADA
  • Prohibited
  • Prohibited
Half-life
  • Under 30 minutes for the intact peptide in rats and dogs. No human data. The 4-hour figure on many sites has no primary source.Competitor guide
  • 0.5 to about 2 hours after IV recombinant thymosin beta-4 in healthy volunteers; no subQ data.Clinical study
  • Rose with dose after IV synthetic thymosin beta-4 in healthy volunteers.Clinical study
Routes
  • Subcutaneous injection, Oral
  • Intravenous (IV), Topical, Subcutaneous injection
Forms
  • Vial (powder), Capsule, Tablet
  • Vial (powder), Topical
Reported doses
  • 100 to 750 mcg (subcutaneous injection)
  • 1.6 to 10 mcg/kg (subcutaneous injection)
  • 250 to 1,000 mcg (oral)
  • 42 to 1,260 mg (intravenous (iv))
  • 0.05 to 25 mcg/kg (intravenous (iv))
  • 0.01 to 0.1% (topical)
Most cited frequency
  • Once daily
  • One dose, then the same dose daily for 14 days
Vial sizes
  • 5 mg, 10 mg, 20 mg, 30 mg, 40 mgCompetitor guide
  • 5 mg, 10 mgCompetitor guide
Mixed vial keeps
  • Fridge at 2 to 8 C, dark, never frozen.Competitor guide
  • Fridge at 2 to 8 C, use within 7 to 10 days, avoid freeze-thaw.Competitor guide
Protocols on file
  • 23
  • 10

Doses shown are what sources report, labelled by origin. Not medical advice.

Read each in full

Sources

9 sources, each checked by date. Record updated Oct 24, 2026. Numbers are restated in our own words and labelled by where they came from.

Competitor guide2

  1. TB-500 protocol (TB-500 vs thymosin beta-4 section)peptidedosingprotocols.com · checked Oct 24, 2026
  2. BPC-157peptidesinsider.com · checked Oct 23, 2026