Peptides
TB-500 Canada
TB-500 supplied as a lyophilised reference material in 2 fills, released against a >99% specification and dispatched from British Columbia, Canada with the certificate for your lot in the box.
Every TB-500 fill in the catalogue
The same material at each size, released against the same specification. The difference between the rows is the quantity in the vial and the price — each has its own catalogue number and its own batch certificate.

TB-500 5mg
OP-018 · >99% · 5mg
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TB-500 10mg
OP-086 · >99% · 10mg
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TB-500 is also catalogued and searched as thymosin beta 4 and tb4. Those are identity synonyms for the same molecule, not related compounds.
TB-500 specification and purity
TB-500 is the active domain of Thymosin Beta-4 (TB-4), with a primary role as an actin binding protein. Its amino acid sequence is Ac-Ser-Asp-Lys-Pro-Asp-Met-Ala-Glu-Ile-Glu-Lys-Phe-Asp-Lys-Ser-Lys-Leu-Lys-Lys-Thr-Glu-Thr-Gln-Glu-Lys-Asn-Pro-Leu-Pro-Ser-Lys-Glu-Thr-Ile-Glu-Gln-Glu-Lys-Gln-Ala-Gly-Glu-Ser. Research demonstrates TB-500 encourages nervous system tissue repair and remodeling by activating oligodendrocytes, is a potent stimulator of VEGF expression for capillary growth, promotes hair growth through increased hair follicle numbers and grouping, enhances antibiotic effects synergistically when combined with ciprofloxacin, promotes cardiovascular recovery through collateral blood vessel growth and reduced fibrosis following heart attack, and enhances autophagy as a protective mechanism against neurodegenerative diseases. This 5mg vial provides material for tissue repair and regenerative biology research.
What every TB-500 lot is released against
- Purity specification
- >99%
- Fills stocked
- 5mg · 10mg
- Catalogue numbers
- OP-018 · OP-086
- CAS number
- 77591-33-4
- Molecular formula
- C₂₁₂H₃₅₀N₅₆O₇₈S
- Molecular weight
- 4,963.4 g/mol
- Composition group
- Peptides
- Ships from
- British Columbia, Canada
Storing and handling TB-500
Store lyophilized peptide at -20°C in a dry, dark environment. Reconstitute in bacteriostatic water. Once reconstituted, store at 2-8°C and use within 30 days. Lyophilized powder is stable at room temperature for shipping and short-term storage.
Storage and handling in fullShipping TB-500 within Canada
Orders placed before 2:00 PM Pacific on a business day are packed and dispatched the same day. Orders placed after that cut-off, or on a weekend or statutory holiday, are dispatched on the next business day.
2–5 business days Canada-wide after dispatch, Monday to Friday, excluding statutory holidays. Parcels leave British Columbia, Canada and travel entirely within the country, with a tracking number on every one. Dispatch cut-off and transit detail.
TB-500 questions
Are research peptides like TB-500 legal in Canada?
TB-500 is supplied here strictly as a reference material for in vitro laboratory research. For laboratory research use only. Not for human or veterinary use. Canadian law turns on what a substance is represented and supplied for, which is why that restriction is on the label, the invoice and every page of this site. The full framework, and what a research-use designation does and does not change, is set out on our legality page.
Is TB-500 shipped from within Canada?
Yes. Every TB-500 order leaves British Columbia, Canada and travels entirely within the country. Orders placed before 2:00 PM Pacific on a business day are packed and dispatched the same day. Orders placed after that cut-off, or on a weekend or statutory holiday, are dispatched on the next business day. Transit after dispatch is 2–5 business days Canada-wide, with a tracking number on every parcel, and orders over CA$200 ship free.
Does TB-500 come with a certificate of analysis?
Yes — the certificate for the lot in your box, not a representative certificate for a different batch. Every TB-500 lot is released against a >99% HPLC specification, and the document carries the lot number, the issuing laboratory and the analytical method. Certificates are not published on this site; if you need another copy, ask us for it by lot number.
How is TB-500 supplied and stored?
As a lyophilised powder in a sealed vial, which is the form that survives shipping without a cold chain. Unopened vials are stored away from light and moisture; the storage and handling page covers the laboratory conditions in full. We publish no dosing, reconstitution volumes or administration guidance of any kind.
Which fill of TB-500 should I order?
TB-500 is stocked in 2 fills — 5mg, 10mg. They are the same material released against the same >99% specification; the only difference is the quantity in the vial and the price. Each fill has its own page with its own catalogue number and its own certificates. Unopened vials can be returned within 14 days.
More peptides in Canada
TB-500 is grouped by what is in the vial rather than by what it is studied for. For laboratory research use only. Not for human or veterinary use.
