Free Express Shipping on Orders $200+ Third-Party Tested Batch-Level COAs Tracked Australian Shipping Free Express Shipping on Orders $200+ Third-Party Tested Batch-Level COAs Tracked Australian Shipping
Third-party tested · Batch-verified

Shipped cold.
Verified pure.
Trusted Down Under.

Independent HPLC and LC-MS testing on every batch. Insulated, tracked, and matched to a public certificate of analysis — from order to your door.

FOR LABORATORY RESEARCH USE ONLY

Third-Party Independent laboratory testing
99.2% Average verified purity
COA Certificate for every batch
COA Verified
BatchDUP-2603-B7
Purity (HPLC)99.4%
Identity (LC-MS)Confirmed
Same-day dispatch
99%+ verified purity
Same-day domestic dispatch
COA on every batch
Heavy metal + endotoxin screened
Encrypted, secure checkout
Third-Party Independent laboratory testing
99.2% Average verified purity
<24h Same-business-day dispatch
COA Certificate for every batch
Our manifesto

The research peptide market has a trust problem.

We started DownUnderPeps because researchers deserve a supply chain they can check for themselves — not another vial with a purity claim and no paperwork behind it.

Most suppliers

“Trust us, it's pure.”

  • No independent testing
  • No batch-level paperwork
  • Unclear sourcing
  • No cold-chain handling
DownUnderPeps

“Here's the COA. Check it yourself.”

  • Independent HPLC + LC-MS testing, every batch
  • Public certificate of analysis per vial
  • Full batch traceability, start to finish
  • Insulated, temperature-controlled dispatch
Why DownUnderPeps

Built for the bench, not the shelf.

Six standards every researcher should expect from a peptide supplier — and where you can check we've held to them.

Independent third-party testing

HPLC for purity and LC-MS for identity on every batch, published to the product page before it ships.

Batch-level certificates of analysis

Every vial carries a batch ID that links to its public COA — full traceability from label to lab report.

99%+ minimum purity standard

Lyophilised under controlled conditions with proper cold-chain handling from synthesis to your bench.

Fast, fully tracked dispatch

Orders placed before 2pm AEST ship same business day, insulated and tracked door to door.

Responsive local support

An Australian-based team on hand for order, batch, and account questions — no overseas call centre.

34+ compounds in catalog

Melanocortins, GH secretagogues, BPC-157, TB-500, neuropeptides, cofactors, and more.

How it works

Your first order, in three steps.

01

Browse the catalog

Explore 34+ research-grade compounds with full specs, public COAs, and batch reports attached.

02

Add to cart

Choose your compounds and pack sizes — bundle pricing is applied automatically at checkout.

03

Place your order

Checkout in minutes. Orders dispatch the next business day with tracking and a batch-matched COA.

Common questions

Everything researchers ask before ordering.

Can't find what you're after? Get in touch.

Every batch is tested by an independent laboratory using HPLC for purity and LC-MS for identity. The resulting COA is stamped with the batch number and test date, and published to the product page before any vial from that lot ships.

Every vial ships with a tamper-evident seal and a packing slip referencing its batch ID. The matching certificate of analysis — HPLC purity, LC-MS identity, and screening results — is available on the product page and in your account.

Orders placed before 2pm AEST dispatch the same business day. Standard delivery is 2–4 business days across Australia. Free shipping applies on orders over $200.

We stock 34+ research peptides, including melanocortins, GH secretagogues, BPC-157, TB-500, neuropeptides, and metabolic cofactors. The full range is on the catalog page.

No. Everything on this site is sold for laboratory research use only. Products are not intended to diagnose, treat, cure, or prevent any disease, and are not for human or veterinary consumption. Purchasing confirms you are a qualified researcher.

Contact our support team with your order number and batch ID. Every vial is traceable to its COA, which makes any quality or shipping issue quick to investigate and resolve.

Get started

Your research deserves verified inputs.

Browse the full catalog of research-grade peptides — every batch documented, every COA published. No commitments, no minimums.

FOR LABORATORY RESEARCH USE ONLY