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TB-500 (TB4)

(8 customer reviews)

Price range: $100.00 through $170.00

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Reviews (8)
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8 reviews for TB-500 (TB4)

  1. Isabella Davis (verified owner)

    I’ve been using TB-500 in my lab for about three months now, primarily for wound healing assays on fibroblast cultures. Reconstitution was straightforward—no cloudiness or particulate after adding BAC water. The peptide seems stable at 4°C for at least a couple weeks. I’ve seen consistently reproducible results in migration assays, which is what I needed. Ordering from The Peptide Lab was smooth; package arrived cold with ice packs, and the vials were well-sealed. Only minor thing: the lot number was printed small on the side of the vial, but I’m nitpicking. Would recommend to any researcher doing tissue repair signaling studies.

  2. Jessica Thomas (verified owner)

    I reordered TB-500 from The Peptide Lab after a previous batch from another source. The peptide itself seems fine—reconstituted clear, and I got expected results in actin polymerization assays. However, the package arrived with the ice packs completely thawed. The vials felt room temperature. I know some peptides can tolerate brief temp fluctuations, but it made me a bit uneasy. I used it anyway and data looks okay, but I’d appreciate better insulation during shipping. For the price, I’ll probably try a different supplier next time. Product quality is there, logistics needs work.

  3. David Anderson (verified owner)

    Got this for some exploratory work on thymosin beta-4 analogs. The peptide itself appears high purity based on my HPLC trace (ran a quick check before use). No complaints about the product. But I’ll say the vial is a bit smaller than I anticipated—only 2 mg, which is fine for small-scale experiments, but if you’re doing dose-response curves you’ll need to order multiple. The Peptide Lab shipped quickly, no issues. I’d buy again. Just wish they offered a 5 mg option for the price.

  4. Sophia Harris (verified owner)

    Been using TB-500 from The Peptide Lab for about six weeks now in our lab’s tissue repair assays. Reconstituted smoothly with bacteriostatic water, no clumping or weird particulates. The results so far are promising — we’re seeing noticeably faster migration in fibroblast scratch tests compared to controls. I’ve tried a couple other suppliers before, and this batch seems more consistent. Only small complaint is the vial stopper felt a bit soft when I first punctured it, but no leakage after. Great value for the purity. Would recommend to any researcher working on cell motility or wound healing models. Just make sure you handle it with proper sterile technique.

  5. Robert Davis (verified owner)

    I needed TB-500 for a study on angiogenesis in zebrafish embryos. The peptide itself performed as expected — no degradation issues after reconstitution and storage at -20°C. I appreciated that the lyophilized powder was easy to handle. The only reason for 4 stars instead of 5 is that shipping from The Peptide Lab took nearly a week longer than their estimate, which threw off my timeline a little. When it arrived, everything was fine, but if you’re on a tight schedule, plan ahead. Overall, a quality product for the price.

  6. Richard Johnson (verified owner)

    Ordered this TB-500 for a project on angiogenesis signaling. Came well-packed in a small insulated envelope with ice packs, though the ice was mostly melted by arrival. No big deal since I reconstituted right away. The peptide itself dissolved easily and gave clear, consistent results in our ELISA assays. I’d give five stars but I wish there was a bit more detail on the certificate of analysis — the purity is listed but not the specific batch testing method. Otherwise, no complaints. Works as expected for my in vitro work. Will probably reorder from The Peptide Lab again.

  7. Logan Johnson (verified owner)

    I’ve been using TB-500 for a wound healing study in a mouse model, and this batch from The Peptide Lab is consistently clean. Reconstitution was easy—no cloudiness or particulates. My ELISA results have been reproducible across three separate experiments. Shipping was faster than I expected, and the vials arrived with ice packs still cold. Only minor thing: the vial label is a bit small, but that’s nitpicking. Would definitely order again.

  8. Ava Wilson (verified owner)

    I’ve been using TB-500 in my lab for a while now to study cell migration and wound closure in fibroblast cultures. The purity seems consistent batch to batch, and I’ve seen reliable results in scratch assays. I ordered from The Peptide Lab and the packaging was well done — vials arrived cold with ice packs intact, which is crucial for stability. Reconstitution was smooth with no visible aggregates. My only minor note is that the vial size is a bit small for larger experiments, but for focused studies it’s fine. Definitely my go-to for thymosin beta-4 research.

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