TB-500
A research label for a thymosin-related peptide. Check the batch report for the exact compound behind the name.
Whole vial: 10 mg Vial math ↓
Why people look it up
TB-500 is popular in injury-recovery circles because it is associated with thymosin beta-4 research on tissue movement and healing.
Wound healing from TB-500INSUFFICIENT EVIDENCE
A human venous-ulcer study tested full-length thymosin beta-4, a different molecule, and did not establish this fragment's benefit. Read source ↗
Tendon or muscle recovery from TB-500INSUFFICIENT EVIDENCE
Related thymosin research and anecdotes do not establish a clinical benefit for this exact TB-500 product. Read source ↗
Inflammation relief from TB-500INSUFFICIENT EVIDENCE
FDA's assessment found no human studies of the compounded TB-500 form it reviewed. Read source ↗
The labels show the evidence for each claim. Open a row for its source.
Dosage at a glance
Dosage source summary
- Lower example
- 500 mcg
- Middle example
- 750 mcg
- Higher example
- 1,000 mcg
- How often
- Once daily in the published example
- Time on / time off
- The chart does not establish an agreed break schedule.
- Route
- Subcutaneous in that chart
Amounts per administration in one chart. TB-500 molecular identity varies across listings; these examples do not verify this vial.
These source amounts do not establish a safe human dose for a research vial.
Sources & individual reports
- PeptideDosages published chart; reviewed October 18, 2026
Amounts per administration in one chart. TB-500 molecular identity varies across listings; these examples do not verify this vial. Source check: 2026-10-18.
Source coverage: 1 reviewed public account. Not a community consensus.
Report 1 ↗First-person account
- Amount reported
- 1 mg described as TB-500 each time; BPC-157 also used
- How often reported
- TB-500 twice weekly; BPC-157 twice daily
- Reported duration / cycle
- not stated
- Route (how it was taken)
- not stated in this comment
What the account says: Commenter discussed recovery after surgery and Achilles injury. The combined use makes the claimed result impossible to attribute to TB-500.
Product match & source details
Product match: The exact thymosin-related molecule and vial were not verified.
r/Peptides firsthand comment · Posted: date not independently verified · Reviewed: 2026-10-03.
How much agreement is there? The public account does not verify whether its thymosin-related material is the short TB-500 fragment or full-length thymosin beta-4. Do not infer a range for either molecule.
Public sources last reviewed: 2026-10-03. Product identity and reported results were not independently verified. Source method →
Evidence, sources & vial math
What the research actually showsHuman studies, evidence limits and mechanisms
What has actually been studied?
The name TB-500 may refer to a thymosin beta-4 fragment. A human venous-ulcer study tested full-length thymosin beta-4, not the TB-500 fragment in this vial; it did not establish a clear wound-closure benefit. Check the exact chemical identity before comparing research.
Evidence limits: The identity called TB-500 can vary across sources. Outcomes, a human regimen, and long-term safety for the exact material in this vial are not established.
Product status: Research-vial listings are not FDA-approved medicines. Approved-use labels on this page refer only to the named finished prescription product.
Human research
FDA’s 2026 evidence review did not identify clinical studies or human exposure data for the N-acetyl-LKKTETQ TB-500 fragment. Published human studies of full-length thymosin beta-4 are about a different molecule and do not establish a human regimen or outcome for this fragment.
Reviewed cited studies and the linked product or regulator documentation; absence of an extracted trial is not proof that no study exists.
Study and prescription-product amounts describe those sources. They do not select an amount for an online research vial.
How researchers think it might work
TB-500 is a short fragment associated with thymosin beta-4. The healing mechanism often attributed to it comes mainly from work on the larger, different molecule. A direct human mechanism for the fragment has not been established.
Show scientific explanation
FDA identified TB-500 as the N-acetylated LKKTETQ fragment and found no human-administered clinical study. Its review also found no in-vivo wound-healing experiment on the exact fragment; results from full-length thymosin beta-4 cannot be transferred to it. Read supporting source ↗
Vial & syringe mathTurn the vial total and liquid volume into concentration and syringe units
Vial & syringe math
Change the vial total and final liquid volume to see what each U-100 syringe mark represents.
The starting 1 mL is a math example. Enter your final mixed volume to update the numbers.
100 U-100 syringe units = 1 mL. These results assume the labeled amount is evenly mixed through the final liquid volume.
Continue in the calculator →About this listingResearch-use-only status, seller names and additional background
A research material is not intended for human use. Its name or lab report does not establish suitability for a person. What research use only means →
Compiled by PeptideWhy · Scientific sources last checked 2026-10-03 · Editorial policy · Corrections