Customer Reviews

Good product, MS peak as expected

Mass spec showed expected molecular weight (4963 Da). Purity ran 98.7 on our HPLC, which is essentially identical to the supplier COA. Slight star deduction only because 22EXO ships in foam-only packaging, which I prefer over bubble wrap, but I think they should add a desiccant pack for thermolabile products like TB-500 even though stability data says lyophilized form is fine at ambient for short windows.

did the job

what more do you want me to say

Better packaging than ___ (rhymes with peptide warehouse)

I won't name names but the prior vendor I used shipped these in zip baggies. 22EXO uses real cold packs and sealed boxes. Night and day.

no issues

ordered, shipped, arrived, looked right. easy.

TB-500 quality

very fluffy lyophilized cake which is what you want. dissolved in 2 mL of BAC water without any swirling needed. coa shows 98.4 purity which matches what they claim

Rating only — no written review.

wanted express shipping wasn't an option at checkout

had to use standard. no complaints about the actual product.

took 4 days

shipping took longer than the website implied. product itself looks fine, will update once we run it through hplc.

Solid product

Good quality TB-500. Packaging was secure and product arrived cold. Would have liked a slightly larger vial.

Clean reconstitution

Dissolved immediately in BAC water. No cloudiness. COA was included and verified against our own testing.

Textbook purity profile

MS and HPLC data matched perfectly. This is research-grade material without question. Will continue ordering.