Recover Faster
TB-500
Soft-Tissue and Muscle Repair Research
Flat $35 tracked shipping10mg per vial
$220 USD
Add 2 more, unlock 19%
| Test | Result | Verdict |
|---|---|---|
| Purity, HPLC | 98.86% | PASS |
| Identity, LC-MS | Confirmed | PASS |
| Sterility | No growth | PASS |
| Endotoxin | Within limit | PASS |
| Heavy metals + fentanyl | Not detected | PASS |
Shipping, delivery and guarantee terms
- Shipping
- Flat $35, tracked worldwide to supported markets
- Delivery
- 5 to 10 business days, guaranteed
- Payment
- Card, bank transfer, or crypto · All sales final except a purity failure
- Included
- 60-day money-back guarantee · Third-party batch COA
The short answer
What is TB-500?
TB-500 is a synthetic peptide based on thymosin beta-4, an actin-binding protein the body uses in cell migration and tissue repair. In animal research, thymosin beta-4 accelerated dermal wound healing (Malinda et al., 1999) and, through its actin-binding site, drove angiogenesis, the growth of new blood vessels that feed recovering tissue (Philp et al., 2003), while a review describes it as a multi-functional regenerative peptide studied across skin, muscle, and heart (Goldstein et al., 2012). Its defining feature is that it is described as acting systemically rather than at one injection site, which is why studied protocols do not site administration near an injury and instead run an opening higher-frequency phase followed by a lower maintenance phase, reported here in units rather than mL. The evidence base is dominated by animal models: no controlled human trial establishes a dose or a healing outcome, so read every figure on this page as what a study measured, not a dose for any person.
The Science
Systemic Tissue Repair
TB-500 is a fragment of thymosin beta-4, a protein your body uses in cell migration and wound repair. Its defining feature is that it acts systemically, supporting recovery across the whole body rather than only at the injection site.
Cell Migration
Supports the movement of repair cells toward damaged tissue, a key early step in healing.
Angiogenesis
Promotes new blood vessel formation to improve nutrient delivery to recovering tissue.
Systemic Reach
The described action is systemic, which is why studied protocols do not site administration near an injury.
Applications
Common Use Cases
Chronic Soft-Tissue Injury
Persistent muscle and connective-tissue injury models in the published record.
Whole-Body Recovery
Systemic repair when multiple areas need attention at once.
Athletic Wear and Tear
Cumulative training-load injury is one of the studied research areas.
BPC-157 Stack
Paired with BPC-157 as the recovery duo for localized plus systemic repair.
Comparison
How does TB-500 compare with BPC-157?
TB-500 and BPC-157 are the two peptides most often discussed together for recovery, and they are studied for different things. BPC-157, a synthetic gastric pentadecapeptide, is studied largely for gut, tendon, and ligament repair and is commonly discussed as the local counterpart to TB-500. TB-500, a thymosin beta-4 fragment, is described as acting systemically across soft tissue and muscle (Goldstein et al., 2012).
| Peptide | Studied focus | Common framing in the recovery pair |
|---|---|---|
| TB-500 (thymosin beta-4 fragment) | Systemic soft-tissue, muscle, and connective-tissue repair | Described as acting systemically, not at one injection site |
| BPC-157 (gastric pentadecapeptide) | Gut, tendon, and ligament repair | Discussed as the local counterpart |
Because one is described as systemic and the other as local, the two are frequently combined as a recovery duo. That pairing has no published trial measuring the two together, so it remains a mechanistic argument rather than a measured outcome, and Peptara Labs does not design combinations for anyone. For a fuller breakdown, see the BPC-157 vs TB-500 comparison.
Healing evidence
What does the research show for healing and recovery?
The strongest TB-500 evidence is preclinical, built on its parent protein thymosin beta-4. In a rodent model, thymosin beta-4 accelerated dermal wound healing and increased cell migration into the wound (Malinda et al., 1999). In cardiac tissue it promoted cell migration, survival, and repair after injury (Bock-Marquette et al., 2004), and its actin-binding site was shown to drive angiogenesis, the new blood-vessel growth that supplies recovering tissue (Philp et al., 2003).
A broader review frames thymosin beta-4 as a multi-functional regenerative peptide studied across skin, muscle, cornea, and heart (Goldstein et al., 2012). What the record does not contain is a controlled human trial that fixes a healing result or a timeline, so these findings describe mechanisms and endpoints in models, not a schedule of what a person should expect. That is the most important thing to hold in mind before reading any figure, and any decision belongs with a licensed clinician.
Half-life
How long does TB-500 stay active?
Half-life is one of the most-asked TB-500 questions, and it is also where the public record is thinnest. The peptide is described as acting systemically rather than clearing from a single injection site, which is why studied protocols front-load an opening higher-frequency phase before dropping to a lower maintenance frequency rather than dosing locally and often.
We do not publish a single half-life number, because we cannot tie a specific figure to a verified controlled human study, and figures circulated elsewhere should be treated with caution. The practical point the research supports is the shape of the studied schedule, not a precise clearance time. For how the question is usually framed, see the TB-500 half-life page.
Research Timeline
What the studies measured, and when
Research Timeline
What the studies measured, and when
Research timeline
What the studies measured, and when
What it is
TB-500 is a synthetic fragment of thymosin beta-4, an actin-binding protein. The described mechanism is cell migration and tissue-repair signaling.
Systemic action
The published account is that it acts systemically rather than locally, which is why studied protocols do not site administration near an injury.
Published protocols
Published protocols describe an opening higher-frequency phase followed by a lower maintenance phase. The site reports those ranges and picks no schedule for anyone.
Evidence base
The record is dominated by animal models. No controlled human trial establishes a dose or an outcome, which is the most important thing to know before reading any figure.
Your Kit
What's Included
$220 USD
Flat $35 shipping · All sales final
TB-500 10mg Vial
10mg per vial · Lyophilized powder, sealed vial
Study Protocol Reference
Loading and maintenance ranges reported in published studies
Worldwide Shipping
5 to 10 business days, guaranteed
Ongoing Educational Support
Direct team access
Your kit includes the vials and bacteriostatic water. Insulin syringes ship to select delivery regions; where they can't ship, we send a same-day sourcing link. A printed reference guide ships with every order.
Traveling with your order
Freeze-dried vials travel well; reconstituted vials travel cold. Rules vary by country. Share your dates when you order.
Why your vials arrive plain
Unlabeled on purpose: discreet, and standard for research-grade material. Match a batch to its certificate with your order number. See the COA page.
Verified orders
What buyers said about their TB-500 order
5.00 · 10 reviews from orders containing this vial. Published word for word.
good stuff. fast ship. no issues at all this time around
Anonymous - Da Nang
Verified order · TB-500 · Aug 23, 2026
came on a friday at like 7am while i was still asleep. box felt light for the size which is weird but whatever. tb clear klow clear seals tight foam snug no shifting when i set it down hard on the counter
Anonymous - Hanoi
Verified order · TB-500, KLOW Combo · Jul 30, 2026
three vials, all in good shape, seals tight, liquid clear. the one thing that bugged me was the delivery exception code that popped up in the tracking app. it said "held at facility" for a whole day and i thought something was wrong. turned out it was just a routing delay, nothing to do with the package itself. support called me to confirm, which was nice. otherwise the box was well packed, tray was new design with the little ridge. cold pack was frozen when i opened it. good.
Lena - Sydney
Verified order · BPC-157, TB-500, SLU-PP-332 · Jul 19, 2026
my yoga instructor mentioned them offhand once while we were chatting about recovery after class and i totally forgot until a week later. went home and searched for their third party lab results, found the reports, ordered from here to be safe on timing. package arrived in four days, box clean no dents, vials clear with proper cap seals
Noor - Da Nang
Verified order · TB-500, Selank · Jul 10, 2026
came on a monday which was good, i was home. cold pack was still frozen when i opened it, like actually frozen not just cold. box had that faint new cardboard smell. vial was centered in the foam, no shifting. label font was a bit small but legible. no issues at all.
Anh - Manila
Verified order · TB-500 · Jul 09, 2026
thursday drop off as they said would happen, no early surprises or late holds. box proportioned sensibly to what was inside rather than the oversized mailer some people send for two tiny vials
Anon - Da Nang
Verified order · CJC-1295 / Ipamorelin, TB-500 · Jun 23, 2026
Our Guarantee
We Stand Behind Our Quality.
Peptara Labs supplies research-grade TB-500, third-party tested with a Certificate of Analysis on every batch. The guarantee is on the material and on how the order is handled. It is not a guarantee of any outcome.
60-Day Money Back Guarantee
Test it at any lab, or your money back
Send any vial to an independent lab within 60 days of delivery. If it does not test as stated on its certificate of analysis (COA), or your order was not handled correctly, you get a full refund. The 60 days is your window to verify us, not a shelf life. The guarantee is on product quality, never on a health outcome.
Study Protocol Reference, Included
Every order includes a written reference to the dose ranges published studies used, with the study named, plus support at no extra cost. This is not a prescription; consult a licensed physician.
Direct WhatsApp Access
Every order includes direct access to our support team. Questions about certificates, reconstitution, storage, shipping or an order, message us any time and a real person responds.
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Quality guarantee: full refund on any purity failure. All sales otherwise final. The 60-day money back guarantee covers product purity, certificate of analysis, and fulfillment. It is not conditioned on any outcome and does not promise one. This is educational information, not medical advice; consult a licensed physician.
Also in a kit
TB-500 is in two research kits
A kit groups catalog compounds from one research area and is priced at 35 percent off their combined retail. It is a grouping for browsing related research, not a protocol, and no kit has been tested as a combination.
Pantheon kit
Multi-system research
Retatrutide, Tesamorelin, MOTS-c, TB-500, BPC-157, CJC-1295 / Ipamorelin, Glutathione, KLOW Combo, GHK-Cu, PT-141 (Bremelanotide)
Wolverine kit
Repair & recovery research
BPC-157, TB-500, GHK-Cu, CJC-1295 / Ipamorelin
Research and citations
Peer-reviewed sources
- Goldstein AL, Hannappel E, Sosne G, Kleinman HK. (2012). Thymosin β4: a multi-functional regenerative peptide. Basic properties and clinical applications. Expert Opinion on Biological Therapy. doi.org/10.1517/14712598.2012.634793
- Sosne G, et al. (2002). Thymosin beta 4 promotes corneal wound healing and decreases inflammation in vivo following alkali injury. Experimental Eye Research. doi.org/10.1006/exer.2001.1125
- Philp D, et al. (2003). Thymosin beta 4 and a synthetic peptide containing its actin-binding domain promote dermal wound repair in db/db diabetic mice and in aged mice. Wound Repair and Regeneration. doi.org/10.1046/j.1524-475x.2003.11105.x
Citations refer to the peer-reviewed publications these figures are taken from. Every dose range reported on this site is the range a named study used. Not a substitute for medical advice.
Explore more
Related guides, comparisons, and compounds studied for related endpoints
TB-500 complete guide
Mechanism, loading and maintenance dosing, side effects, and the BPC stack.
BPC-157 vs TB-500
Gut and tendon repair vs systemic soft-tissue healing.
BPC-157
The classic stack pair for the elite recovery duo.
Best peptides for recovery
How TB-500 ranks against other repair peptides by use case.
Reconstitution calculator
Concentration math for a lyophilized vial, in units rather than mL.
TB-500 dosage
What research protocols used, in units not mL.
TB-500 for healing
The soft-tissue repair evidence, by the studies.
TB-500 for injury recovery
What the research describes for recovery.
TB-500 half-life
How long TB-500 persists, by the evidence.
TB-500 side effects
Reported effects and what studies measured.
Best peptides for tendon repair
Where TB-500 ranks for tendon and ligament work.
Best peptides for joint health
Peptides studied for joint support, ranked.
TB-500 FAQ
Order TB-500, 10mg vial
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