Vita TB-500 5mg
5 mg · powder vial
$19.20 per mg
Vita TB-500 5mg: Thymosin beta-4 (TB-500), 5 mg per vial, 1 vial. Ships from inside Canada in plain packaging, with tracking within 72 hours; free Canada Post shipping over $300.
Vita peptides- Compound
- Thymosin beta-4 (TB-500)
- Strength
- 5 mg per vial
- Pack
- 1 vial
- Total per order
- 5 mg
- Form
- Freeze-dried powder
- Brand
- Vita
About Vita TB-500 5mg
TB-500 is a synthetic version of part of thymosin beta-4, a protein involved in cell movement and wound repair.
Vita: Each order is one vial holding 5 mg of freeze-dried powder. Mix it with bacteriostatic water before use.
Commonly used for
- Research into soft-tissue and wound healing
Compound profile
- Formula
- C38H68N10O14
- Molecular weight
- 889.0 g/mol
- CAS number
- 885340-08-9
- PubChem
- CID 62707662
hydrophobic polar positive negative modified or non-standard
How it works
Thymosin beta-4 helps cells migrate and form new blood vessels during repair. TB-500 is thought to mimic part of that activity.
Clinical reference dose
Clinical reference: there is no approved human dose. Thymosin beta-4 itself was trialled as eye drops and wound gels, not as injections like this.
Mixing: adding 2 ml of bacteriostatic water to this 5 mg vial gives 2.5 mg per ml. On a U-100 insulin syringe, 10 units (0.1 ml) then holds 0.25 mg.
It is banned in tested sport.
These are reference amounts from labels and clinical studies, not a personal recommendation. A doctor sets the right dose for you, using your bloodwork.
Measuring calculator
Enter the amount you have been prescribed or are working from, and this works out exactly what to measure from this product. It doesn’t suggest an amount.
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Arithmetic only, from the strength on this product’s label. Check the label on your vial or bottle, follow your prescriber, and ask a pharmacist if you’re unsure how to measure.
Injection sites
TB-500 5mg comes as a freeze-dried powder. Once it is mixed with bacteriostatic water, peptides like this are usually given subcutaneously (subQ): into the fat just under the skin with a short insulin needle, not into muscle.
- Muscle
- Subcutaneous fat of the belly
- Group
- Abdominal wall
- Volume (nursing reference)
- Up to about 1 ml per site
- Needle
- 4–13 mm insulin needle, 29–31G
Finding it. Anywhere on the belly at least 5 cm (2 in) from the navel, avoiding scars, stretch marks and the belt line. Pinch a fold of skin and inject into the fold.
Why people choose it. The most-used subcutaneous site: the most fat, easy to see and reach, and absorption is steady. It is the first site listed on the labels of weekly GLP-1 pens.
Watch out. Move each injection at least 2–3 cm from the last one to avoid lumps (lipohypertrophy).
- Muscle
- Subcutaneous fat of the thigh
- Group
- Thigh
- Volume (nursing reference)
- Up to about 1 ml per site
- Needle
- 4–13 mm insulin needle, 29–31G
Finding it. The middle of the front of the thigh, a hand-width below the hip and above the knee.
Why people choose it. Easy to reach seated and a good second site to rotate with the belly.
Watch out. Absorption can be a little slower than the belly, and heavy leg exercise straight after may speed it up.
- Muscle
- Subcutaneous fat over the triceps
- Group
- Upper arm
- Volume (nursing reference)
- Up to about 1 ml per site
- Needle
- 4–13 mm insulin needle, 29–31G
Finding it. The fleshy back of the upper arm, halfway between the shoulder and the elbow.
Why people choose it. Adds a third site to rotate through, so each spot gets more rest.
Watch out. Hard to pinch and reach on yourself; most people need a helper here.
Why these sites for TB-500 5mg
Subcutaneous (subQ)- Belly first. The abdomen has the most fat and the steadiest absorption, and you can see what you are doing. The thigh and back of the arm are there to rotate into.
- Small volumes, short needle. SubQ injections are small (around 1 ml or less per spot). An insulin syringe (4–13 mm) reaches the fat without touching muscle; pinch the skin if you are lean.
- Rotate every time. Move each injection 2–3 cm from the last. Repeating one spot causes hard lumps under the skin that absorb unevenly.
Every time: wash your hands, wipe the vial top and the skin with alcohol and let it dry, use a new sterile needle and syringe, and never share. Get medical help for spreading redness, heat, swelling, pus, fever, numbness or pain that keeps getting worse. This is general reference information from standard nursing injection guidance, not medical advice; a pharmacist or nurse can show you the technique in person.
Combinations and interactions
Often compared or used with
- Often discussed with BPC-157; no human studies of the pair.
Interactions to know
- Unknown: not studied in people.
Tell your doctor and pharmacist about everything you take, including supplements, before adding anything new.
Side effects and risks
Unknown safety
Little human data.
Cancer concern
Pro-growth signalling is a theoretical risk with existing tumours.
Injection safety
Use a new sterile needle and syringe every time, wipe the stopper and skin with alcohol, and never share. Redness, heat or swelling that gets worse after a day or two can mean infection and needs a doctor.
Have or have had cancer, are pregnant, or compete in tested sport.
In Canada: Thymosin beta-4 fragment (TB-500) is not approved by Health Canada for human use. It is sold as a research peptide.
Common questions
Is TB-500 the same as thymosin beta-4?
No, it is a shorter synthetic fragment.
How fast does it ship?
Orders ship from inside Canada with a tracking number within 72 hours of payment. Weekend orders are packed on Sunday or Monday. Canada Post Xpresspost takes 2–5 business days to most cities; UPS or FedEx is faster. Shipping is free by Canada Post over $300 and by UPS or FedEx over $1,000.
How is it packaged?
In a plain box with no product names or branding on the outside.
Is thymosin beta-4 fragment (TB-500) legal in Canada?
Thymosin beta-4 fragment (TB-500) is not approved by Health Canada for human use. It is sold as a research peptide.
Sources
- Thymosin β4: a multi-functional regenerative peptide. Basic properties and clinical applicationsGoldstein AL et al. · Expert Opin Biol Ther · 2012 · PMID 22074294
- Safety and Efficacy of Approved and Unapproved Peptide Therapies for Musculoskeletal Injuries and Athletic PerformanceMendias CL, Awan TM · Sports Med · 2026 · PMID 41966639
Chemical data and structures: PubChem, U.S. National Library of Medicine. Protein sequences: UniProt.
Specifications
| Compound | Thymosin beta-4 (TB-500) |
|---|---|
| Strength | 5 mg per vial |
| Pack | 1 vial |
| Total per order | 5 mg |
| Form | Freeze-dried powder |
| Brand | Vita |
| SKU | TB500-5MG-V2 |
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This information is educational and is not medical advice. Talk to a doctor or pharmacist before using any hormone, peptide or prescription drug. For adults 18+ only.