A friend asked me about NordSci Peptides (nordscipeptides.com), so I poked around what I can find online. Trying to compare them against a couple other vendors, and honestly the listing details matter more than the homepage.
Are products listed with full sequence, molecular weight, purity method, and batch/lot IDs, or just names and sizes? Do batch-specific COAs show up before you buy, and do they actually include HPLC/MS chromatograms, lab name, lot number, test date?
Shipping: which carriers, transit times, packaging, cold-chain or ambient, and is there a reship policy for lost or delayed orders? Prices: per-vial or per-mg breakdowns, bulk tiers, separate shipping or insurance fees, or hidden costs?
And where are they based, where do shipments originate, and does that line up with the COA lab and stated shipping origin?