Overview
TB-500 is supplied lyophilized in 5 and 10 mg fills for laboratory research use only. Lots are third-party tested for purity, identity, quantity, sterility, endotoxins, and heavy metals before listing.
Certificate of analysis on file per lot.
Minimum order is 50 vials (5 kits) across your whole order — order this compound in 10-vial kits and mix it with anything else in the catalog to reach the minimum.
Wholesale pricing
PER VIAL · 2 SKUSPrices are per vial and every compound ships in 10-vial kits. Your tier is set by the total kits on the order, not per compound — so ten kits split across ten compounds earns the same 10% as ten kits of one. The minimum is 50 vials (5 kits) across the order.
| STRENGTH | Tier 15–9 kitsLIST | Tier 210–49 kits−10% | Tier 350–99 kits−20% | Tier 4100+ kits−30% |
|---|---|---|---|---|
| 5 MGTB5 | $12.00$120.00 / kit | $10.80$108.00 / kit | $9.60$96.00 / kit | $8.40$84.00 / kit |
| 10 MGTB10 | $24.00$240.00 / kit | $21.60$216.00 / kit | $19.20$192.00 / kit | $16.80$168.00 / kit |
Wholesale pricing per vial, ordered in 10-vial kits. Volume tiers apply to the total kits on your order, mixed across any compounds. Effective July 2026; confirmed in writing with your order and subject to change. A kit is 10 vials.
Specifications
- SEQUENCE
- Ac-Leu-Lys-Lys-Thr-Glu-Thr-Gln
- CLASS
- Thymosin β4 fragment (Ac-LKKTETQ)
- PURITY TARGET
- ≥ 99% purity
- PRESENTATION
- 5–10 MG · LYOPHILIZED
- STRENGTHS
- 5 MG, 10 MG
- SKUS
- TB5, TB10
- ALSO KNOWN AS
- Thymosin β4 fragment, TB4-Frag
Reference values. The lot certificate is the source of record for tested figures.
Testing & certificate
Every new batch is tested by Kovera Labs before release — identity, quantity, purity, endotoxins, heavy metals, and sterility. Certificates are batch-specific: the purity number on the certificate is the exact value returned for that batch — nothing is rounded up, nothing is estimated.
Issued by Kovera Labs. Each certificate carries a report number and access code you can check independently at koveralabs.com/verify — we do not stand between you and the laboratory. Certificates are batch-specific, so the figures above belong to the batch named on each row and not to any other.
Every published certificate is also searchable by batch or report number in the certificate library.
Wholesale terms
- MINIMUM ORDER
- 50 vials (5 kits) across the order — mix compounds in 10-vial kits to reach it
- PRICING
- From $8.40 per vial at 100+ kits — see the tier table. Confirmed in writing with your order.
- WHO WE SELL TO
- Resellers and institutions (resale certificate welcome)
- ORIGIN
- US-sourced and US-warehoused. Never relabeled from overseas.
- LABELING
- Stock vials ship unlabeled. The labeled vial shown on our product pages and catalog is an illustration — it exists so you can see the compound and dose at a glance, and is not a photograph of what arrives. Your lot number is on the certificate supplied with your shipment, which is how you match what you received to its certificate. Printed vial labels are the white-label program.
- SHIPPING
- $35.00 flat shipping for orders up to 400 vials, within the United States. Orders in by noon Pacific ship the same business day from Costa Mesa, California, by UPS 2nd Day Air and arrive in 1–2 business days — about 1–2 days in California, around 2 nationwide. UPS Next Day Air is $100.00 for orders up to the same size. Very large orders and special destinations are quoted individually. Cold-chain packaging, where a compound requires it, is quoted and billed separately.
- RETURNS
- Research peptides are not returnable once shipped: sealed vials and chain-of-custody mean a returned vial cannot be released to another buyer. If a shipment arrives damaged, incomplete, or is not what you ordered, contact the desk and we will make it right.
- WHITE LABEL
- Available — your branding on vial, label, and box
Handling & storage
- STORAGE
- Store lyophilized refrigerated, protected from light. Shelf life up to 2 years refrigerated. Stable at ambient temperature for transit.
- RECONSTITUTION
- Reconstitute with bacteriostatic water for laboratory use. Reconstituted material is stable for up to 60 days depending on the compound — keep refrigerated and protected from light.
- PRESENTATION
- 5–10 MG · LYOPHILIZED
Handling guidance for laboratory research use only. Not for human consumption.
Frequently asked
What is the minimum wholesale order for TB-500?
Our minimum is 50 vials (5 kits) across the whole order, not per compound. TB-500 is ordered in 10-vial kits, so you can take a single kit and make up the rest of the minimum with any other catalog compounds. Volume pricing improves with the total kits on the order — see the tier table on this page.
Is there a certificate of analysis for TB-500?
Yes. Every lot of TB-500 goes through Six-panel release testing and its certificate is filed and public, searchable by lot number in the certificate library.
How is TB-500 shipped and stored?
TB-500 ships as a 5–10 mg · lyophilized from our US warehouse on fast carriers. Store lyophilized refrigerated, protected from light. Shelf life up to 2 years refrigerated. Stable at ambient temperature for transit.
Do TB-500 vials come labeled?
Stock vials ship unlabeled. The labeled vial shown on our product pages and catalog is an illustration — it exists so you can see the compound and dose at a glance, and is not a photograph of what arrives. Your lot number is on the certificate supplied with your shipment, which is how you match what you received to its certificate. Printed vial labels are the white-label program.
What strengths of TB-500 are available wholesale?
TB-500 is stocked in 5 mg, 10 mg. Each strength is its own SKU and ships in 10-vial kits; you can mix strengths on one order, and all of them count toward your volume tier.
Can TB-500 be supplied under our own brand?
Yes. TB-500 is available for white-label supply — your branding on the vial, label, and box. Note the white-label program with your order to receive artwork specs and minimums.
ALSO IN PEPTIDE
FROM THE CATALOG