Peptide & research compound testing

Fast, accurate &
transparent testing.

Certa Diagnostics tests peptides and research compounds for identity, purity and quantity — with private reports your customers can verify themselves.

Turnaround

Sample to certificate, in days.

2days
Rush turnaround
4days
Standard turnaround
Speed

Fast, predictable turnaround keeps your inventory moving and your releases on schedule.

(01)Our mission

Transparency, precision
and trust.

We provide accurate, independent and transparent analysis so you and your customers know exactly what's in the vial. Every sample is handled under strict protocols, from intake to certificate.

01

Confidential

100% anonymous. Samples are tracked by ID only, and reports stay private until you share them.

02

Precise

Validated HPLC and mass-spectrometry methods, with every result reviewed by a qualified PhD chemist.

03

Verifiable

Every report can be checked by scanning its QR code or entering it on our Verify page.

(02)Testing services

Complete analysis for your products.

Full menu & rush prices
Add-onsEndotoxin (LAL) · $175.00Sterility (USP <71>) · $150.00Heavy metals (ICP-MS) · $175.00Residual TFA · $75.00Residual solvents (GC) · $150.00
(03)Method
Fig. 03Reverse-phase HPLC, purity by area %
Fig. 04LC-MS identity confirmation

Validated methods. PhD-verified results.

Identity
Mass spectrometry confirms the molecule is what the label says.
Purity
HPLC separates the compound from synthesis by-products and degradants.
Quantity
Net content per vial, compared with the labeled amount.
QA review
A qualified chemist reviews every result before the certificate is issued.
Fast, accurate, transparent testing.Certa
(04)Process

How it works: sample to certificate.

  1. 01 / 04

    Order online

    Choose your tests and turnaround, and pay by card.

  2. 02 / 04

    Ship your sample

    After checkout you get a prepaid shipping label plus packing and labeling instructions.

  3. 03 / 04

    Analysis

    Track progress in real time: received, in testing, in review. Rush in as little as 2 days.

  4. 04 / 04

    QA & certificate

    Reviewed by a qualified chemist and delivered to your account with QR verification.

(05)Verification

Verify any certificate.

Every report in our database can be verified with its certificate number and code, or by scanning the QR code on the report.

Certificate of analysisAuthentic
COA-26K7M2QX
Identity
Conforms
Purity
99.12 %
Content
10.36 mg
(06)FAQ

Frequently asked questions.

Customers
How do I send my sample?+

After checkout, print your intake form and vial labels. Ship with any carrier, or choose our prepaid label at checkout. Add your tracking number and we follow the package automatically.

How much sample do you need?+

One sealed vial is enough for identity, purity and quantity. Add-ons such as endotoxin or sterility may need a second vial — we'll tell you on your order page.

When does the turnaround clock start?+

When your sample is checked in at the lab. You'll get an email the moment it arrives, and your order page always shows the live status.

Can anyone verify my certificate?+

Yes. Every certificate has a QR code, a certificate number and a verification code. The public page shows the results but never your name or contact details.

Which payment methods do you accept?+

Major credit and debit cards (Visa, Mastercard, American Express).

Don't see your compound?+

Email support@certadiagnostics.com — our testing capabilities go beyond what's listed on the site.

Business & partners
Can I show results on my product pages?+

Yes. Every certificate has a public verification link and QR code you can put on product pages and marketplace listings.

Do you offer volume pricing?+

Yes — multi-sample orders are discounted automatically, and approved business accounts get a permanent price tier plus bulk CSV ordering.

Can I refer clients?+

Join the partner program to get a referral link and code. You earn commission on every test your referrals order, for as long as they order.

Do you keep results confidential?+

Samples are tracked by anonymous IDs. Partner laboratories never see customer names or details, and certificates are only public if you share them.

Accepting new clients.
Test your sample today.

Refer clients and earn on every test — partner program.