TB-500
Systemic healing
The cell migration half of the healing equation.
Research chemical vendors can't legally label products with the real name, so TB-500 often appears under coded SKUs. If you're shopping and see any of these, it's the same compound:
- TB500
- TB-4 fragment
- Thymosin B4
Codes shown are for identification only. Always verify third-party COAs before purchase.
A synthetic fragment of Thymosin Beta-4, the most abundant actin sequestering protein in the body. Drives cell migration into injured tissue, blood vessel formation, and stem cell activation.
- Systemic injuries — when localized BPC-157 isn't enough
- Hair regrowth (notably in some MPB protocols)
- Pairs naturally with BPC-157
Educational only · Not a vendor claim
Thymosin Beta-4 fragment — drives actin reorganization, cell migration, and angiogenesis.
- Systemic healing
- Cell migration to injury
- Hair regrowth signal
- Improves flexibility
- Reduced stiffness
- Faster injury resolution
- Better skin healing
- Long half life — twice weekly
- Systemic vs. local action
- Pairs perfectly with BPC-157
- More expensive than BPC-157
- Theoretical concern with active cancers
- Mild lethargy early in cycle
- Rare head rush feeling
Educational summary · Not medical advice · Discuss with a qualified clinician
Typical timeline
General pattern for the Healing category. Individual response varies.
- Week 1Subtle. You may notice slightly less pain or better range of motion. Don't push injuries yet.
- Weeks 2–4Clear improvement in pain and tissue tolerance. Begin controlled loading of the injured area.
- Weeks 4–8Peak repair phase. Function returns. Keep dose consistent — skipping days slows the curve.
- Post-cycleGains generally stick if you also fixed the underlying mechanics (form, load management, mobility).
Pairs well with
Common combinations experienced users run alongside TB-500. Always add one peptide at a time so you can attribute effects and side effects.
Read the safety guide before stacking.
The reconstitution math
- 1Reconstitute the 10 mg vial with 2 mL of bacteriostatic water. Tilt — don't shake.
- 2Concentration becomes 5,000 mcg/mL (5 mg/mL).
- 3For a 2.5 mg dose, draw 0.500 mL — that's 50 units on a 1 mL insulin syringe.
- 4One vial gives you approximately 4 doses.
Reminder: 100 units on an insulin syringe = 1 mL. Always start at half the listed dose for the first week and rotate injection sites between arms, legs, abdomen, and glutes.
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