Convalence Labs

Legally established 2026 · Spain, European Union

Independent testing you can verify, not just trust

Convalence Labs is an independent laboratory opened in 2026 by senior analysts with over 15 years of combined experience in molecular identification. We test what a sample really contains: composition, purity and dose, against certified reference standards, with every certificate verifiable online.

Live--:--:--Spain

Customer service
—
Reports to dateupdated every 30 days
0
Typical turnaround
7 to 14 business days · peptides ~1–2 weeks, HGH ~3 weeks

Results are issued in the order samples arrive.

Clock and customer service status live; other figures from our own records.

On our bench: the GC-MS

A real photo of the system we use every day, with what it measures and which analyses use it.

GC-MS system in daily use in the laboratory

FIG. 01Data sheet

GC-MS

Technique
Vaporises the sample, separates it by gas chromatography and identifies each compound by its mass spectrum.
What you get
Identification of the compounds in oils, powders and unknown samples.

Used in

What a sample actually contains, not what its label claims.

We work with researchers, athletes and industry professionals. Being new gives us no legacy client relationships or supplier ties to protect: our only business is testing, so every result stands on its own.

FIG. 02Data sheet

Reverse-phase HPLC

Technique
Separates the sample into its components on a column and measures each peak with a UV detector.
What you get
Purity as area % of the main peak, content in mg against a certified reference standard, and identity by retention time against that standard.

Used in

HPLC system at the Convalence Labs laboratory, in daily use

Follow your vial

  1. 1

    Received

    Your sample arrives sealed. We log the order and label the sample before anything else touches it.

    01/05custody.log → sample labelled

  2. 2

    Analysed

    Identity, purity and content, with the method your analysis needs, against certified reference standards.

    02/05run → vs. certified reference standard

  3. 3

    Approved

    An analyst reviews the data and signs the certificate.

    03/05review → data checked, certificate signed

  4. 4

    Sealed

    The certificate gets a report number and a verification key, and its SHA-256 fingerprint is recorded.

    04/05sha256 → fingerprint recorded

  5. 5

    Verified, by anyone

    Anyone with the number and the key can check the certificate at convalencelabs.com/verify, without an account.

    05/05/verify → match, no account needed

    Check an example certificate

Things we keep at zero

  • 0products soldWe test only: no formulation, manufacturing or sales, so no result is in our interest.
  • 0 €rush feesOne price per sample. Every sample waits in the same queue.
  • 0certificates you can't checkEach one carries its own number and key for /verify.

Your identity and submission details stay private.

Samples from anywhere in the European Union.

The analysts behind your certificate

Analyst 01Signs certificates

Javier Montesinos

Lead Analytical Chemist

Holds an official Master's Degree in Analytical Chemistry from the University of Barcelona (UB). Specializes in advanced chromatographic coupling methodologies and the characterization of complex lipophilic matrices via GC-MS. 9 years directing high-throughput purity audits and analytical method validations for regulated testing environments.

Degree
MSc Analytical Chemistry · UB
Focus
GC-MS
Years
9
His name is on the certificates: see an example

Analyst 02

Arthur van der Meer, MSc

Senior Method Development Specialist

Graduated from the MSc in Chemical Engineering program at the University of Groningen (RUG), focusing on Advanced Product Engineering. Expertise centers on the design, optimization, and scale-up of HPLC/UHPLC protocols for strict dosage quantification and trace impurity isolation. 6 years supervising manufacturing quality control under European GMP compliance standards.

Degree
MSc Chemical Engineering · RUG
Focus
HPLC / UHPLC
Years
6

Analyst 03

Matteo Bianchi, MSc

Head of Mass Spectrometry & QA

Completed the international Master's in Advanced Spectroscopy in Chemistry (ASC) at the University of Bologna (Unibo). Specializes in structural confirmation and diagnostic chemical problem-solving using High-Resolution Mass Spectrometry (HRMS). 5-year track record as Quality Assurance and Technical Manager, validating batch homogeneity in certified chemical testing laboratories.

Degree
MSc Advanced Spectroscopy · Unibo
Focus
HRMS · QA
Years
5

EU-wide, by design.

A logistics network built for the secure transport of chemical compounds lets us process analytical requests from clients located within the European Union. We specialize in the thorough characterization of complex chemical matrices, including pharmaceuticals, peptides, and sports-related additives, while supporting both private individuals and product-development companies. In line with legal counsel, we do not accept opioids or other internationally controlled narcotics for analysis. Every analysis ends with a hash-verified digital report, instantly verifiable by any third party through our public platform.

  • 27 EU member states
  • Convalence Labs · Spain

Send a sample. Get a certificate anyone can verify.