TB-500

Compare vendors on price-per-mg rather than sticker price, and confirm a third-party Certificate of Analysis (COA) is publicly available before you buy. The comparison table above flags self-tested-only results and account-required vendors so you can filter those out first.

Stick to vendors with no unresolved legal issues or community warnings, and check that stock and pricing were verified recently: the "last checked" date on each listing tells you exactly when. Products listed here are intended strictly for laboratory research use.

Is TB-500 legal to buy?

Yes, TB-500 is legal to buy in the United States as a research chemical, and every vendor listed on this page sells it labeled strictly for laboratory research use, not for human consumption. The FDA has not approved TB-500 as a drug, supplement, or cosmetic ingredient, so no vendor can legally market it for use in or on the human body: the "research use only" language on offer listings isn't a loophole, it's the actual legal basis these vendors operate under. That distinction is worth weighing when you compare offers: a vendor that markets TB-500 with dosing instructions, health claims, or "for personal use" language is stepping outside that research-use framework, which is itself a signal alongside price and COA data. Import restrictions and enforcement can vary by state and by carrier, so treat this as a general legal summary, not individualized legal advice, and check your local regulations before ordering. Nothing on this page is medical guidance.

What forms does TB-500 come in?

Like most research peptides, TB-500 is typically sold as a lyophilized (freeze-dried) powder in a sealed glass vial, which needs to be reconstituted with bacteriostatic water before use. Vendors ship it this way because powder is far more stable at room temperature than a pre-mixed liquid, and it keeps longer once reconstituted and refrigerated. Across the vendors listed above, TB-500 comes in 3 dose sizes (2mg, 5mg and 10mg), each packaged by the mg. Always confirm the exact vial size and packaging on the vendor's own product page before ordering, since the sizes above reflect what's currently listed for sale.