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Product sourcing reference

TB-500 Sourcing Review

Before evaluating a TB-500 proposal, resolve exactly which molecule the supplier means. Names used in marketing may obscure differences between a fragment and a full-length peptide.

Reference variants

Add TB-500 to an order request

Quantities are individual vials (packs of 10). Orders need 100 vials and/or 20 spray bottles in total, mixed across items. Prices are reference estimates captured 2026-10-16; every request is pending eligibility and availability review. Per-unit figures are rounded to the cent from kit pricing, so a final quote may differ slightly.

  • 10mgVial · confirm physical formCAS 77591-33-4
    $31.63/vial$25.30/vial at 1,000+ vials of this item
    vials, packs of 10

Review your order request · Compare the full catalog

Identify the sequence, not just the trade name

Request the precise chemical identity and sequence. Do not assume that TB-500, a thymosin beta-4 fragment and full-length thymosin beta-4 identify equivalent material.

Match evidence to the proposed substance

Studies on one sequence cannot automatically support another. Have the reviewer compare the tested molecule, route and formulation with the proposed material before considering any clinical claim.

Before a sourcing inquiry

For TB-500, provide the exact substance or finished-product identity, intended transaction, facility type and destination state. Do not send patient information. A qualified reviewer must confirm the applicable pathway before purchasing.

  • Obtain product- and lot-specific identity and quality records before accepting material.
  • Verify storage, shipping and dating against the actual preparation, not a generic catalog range.
  • Request written confirmation of availability and terms; this page does not confirm stock, strength, price or supply eligibility.

We do not currently have verified COAs available to publish. No purity, sterility or lot-release result is established by this page.

Purchasing questions

Can thymosin beta-4 research validate any TB-500 listing?

No. The identity and study context must match. A related name does not establish equivalence, therapeutic benefit or regulatory eligibility.

Related sourcing guidance

Resolve fragment versus full-length terminology

FDA's safety page identifies thymosin beta-4 fragment LKKTETQ as TB-500. Supplier terminology must be reconciled with the exact sequence rather than assuming every thymosin beta-4 reference denotes the same material.

Documentation to request

Ask for the sequence, molecular identity and matching analytical records. Resolve discrepancies before comparing the quantity or price.

Regulatory context: FDA: substance-specific safety concerns. Source reviewed . This source does not verify the identity, testing or availability of our catalog references.

Related guidance: Evidence review before expanding a clinic menu. These references support a review, not a treatment recommendation or supply authorization.

Verify the current regulatory position

Use FDA human drug compounding guidance and applicable state requirements. A compounded preparation is not FDA-approved. This reference is not medical or legal advice and does not establish a lawful supply route.

Ask about the review requirements

Ask what information is needed to assess a TB-500 inquiry. An inquiry is not confirmation that the product can be supplied.

Discuss sourcing requirements
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