How I Vet a Peptide Vendor (and Why I Use Exactide)

Step 1: Identity and presence

I start with the basics, because most weak vendors fail here first:

• A named business entity — not just a logo and a domain.
• A working support channel (email or form) that responds before I pay anything. I send one specific technical question, like "which lab ran the COA for batch X?" Silence or a sales-script answer is information.
• A web presence older than a few months, with no pattern of unresolved complaints in research communities.
• Prices inside the normal market band for the compound. Deep discounts are the classic tell — we explain why in peptide vendor safety.

Step 2: The COA — the part that actually matters

Before ordering, I ask for the batch-specific certificate of analysis for the exact product I would receive. Then I check:

1. Batch match. The batch number on the COA must match the vial I would receive.
2. Named method. Purity measured by HPLC or mass spectrometry (LC-MS), with the actual numbers — not "99%+".
3. Named lab. A testing lab with a real identity and contact information. Fabricated COAs recycle the same labs; see how to spot a fake COA.
4. Test date. Recent, and consistent with the vendor's inventory story. A 2023 test date on a "fresh batch" is a copy-paste document.
5. Scope. What was not tested. A COA that reports purity but no endotoxin or heavy-metal panel tells me exactly what I am and am not getting. I would rather see honesty here than a too-clean document.

If you have never read one, start with how to read a peptide COA — the anatomy of the document is consistent across labs — and practice with the COA Analyzer, which walks through each field of a real certificate.

Step 3: Payment and recourse

For a first order I want a payment method with some buyer protection — a card or a processor with disputes. Vendors that accept crypto sometimes offer a discount for it, and some established vendors do accept it. But irreversible payment to a stranger removes the only leverage that exists in an unregulated market. Crypto-only plus no identity is a hard no. More on the scam patterns in peptide vendor red flags and crypto-only vendors.

Step 4: Small first order, then verify

The first order is a test, not a stock-up. When it arrives:

• I check the vial labels against the COA I was shown (batch number, mass, lot date).
• I photograph everything before opening anything — vial, box, seal, paperwork.
• If a claim matters to me, I note that the only verification beyond documents is independent analytical testing, which some labs will do for a fee. That is the real ceiling of trust in this market: documents are evidence, but they are documents provided by the seller.

Where I personally land — with disclosure

After running this process, I order most of my material from Exactide, and I want to be transparent: Exactide is a partner of this site, and links to it from Wize Peptides support the site. That is exactly why this guide is a process rather than a name — the same checklist gets you to your own answer, whatever the vendor is.

What moved them through my checklist, specifically: batch-specific COAs published per product, named third-party testing, responsive answers to technical questions (including what they don't test), and payment with buyer protection on a first order. The longer treatment is in Is Exactide legit? An honest review — including the parts I would watch.

The checklist, compressed

1. Named entity, working support, market-band pricing.
2. Batch-specific COA with named method and named lab, matching your vial.
3. Buyer-protected payment on first orders.
4. Small test order; verify documents against the physical product.
5. Trust compounds with verified documents, and re-run the process — vendors change.

This guide is for educational and research purposes only. Nothing here is medical advice, and nothing here endorses the use of any compound in humans.