Who We Work With

For a contract manufacturer, the lot record must support both internal and client review.

A copper-peptide active that arrives at a contract manufacturer is inspected once on the way in and again, implicitly, every time the client behind the run audits the finished good. We supply GHK-Cu and AHK-Cu in bulk to manufacturers who carry that double exposure — with copper-content verification, defensible per-lot documentation, and the supply consistency that lets you commit to a production schedule.

The work

What it looks like when we supply you.

A contract manufacturer is accountable to two QCs at once: your own incoming inspection, and the standard your client holds you to for the product you make on their behalf. A raw material that passes the first and embarrasses you at the second is worse than useless. The work we do here is to make the copper-peptide active the dependable part of the run — material whose documentation is built to be re-examined by someone who was not in the room when it was released.

For copper peptides, documentation may need to do more than assert purity: a buyer specification can also require evidence of coordination and copper content. Atomic absorption, ICP-MS, and HPLC-DAD answer different questions, so the method, acceptance rule, sample needs, reporting format, and cost should be agreed before quotation. The matching batch COA then records what was actually tested.

Underneath the paperwork sits the thing a manufacturer needs most: predictability. Lot-to-lot consistency in copper content, coordination, and colour is what lets you schedule a run and trust that the active behaves the same way it did last quarter; stability evidence framed against ICH is what lets you and your client reason about shelf life honestly. The Field Notes below are the methods we work from, so when a specification conversation gets technical, we are arguing from the same page.

What we hand over

What leaves the atelier in your hands.

Regions served: Contract manufacturing hubs across the EU · North America · South Korea · India · Southeast Asia.

Per-lot data built to be re-audited: Identity, purity, copper content, and Cu²⁺ : peptide ratio documented so the lot holds up not only at your incoming-QC but when your client examines the finished good. Documentation that assumes a second reader.
Copper quantification by the right method: Copper content verified by the technique that fits your release and your client's spec — AAS, ICP-MS, or HPLC-DAD each answer it differently — agreed with you rather than handed down, so the figure is one you can stand behind.
Stability evidence you can reason from: Copper-peptide stability framed against ICH — what real-time and accelerated testing each genuinely support — so a shelf-life conversation with your client rests on method rather than assertion. Lot-level data on request.
Bulk supply you can schedule around: Consistent copper content, coordination, and colour from lot to lot, with lead times and reservation we will commit to, so a production schedule does not hinge on whether the next lot behaves like the last. Regions and capacity discussed at quote.

Copper systems for this work

The bulk actives behind the run

3-mer

GHK-Cu

≥99.0%

Copper tripeptide-1

CAS: 89030-95-5
Vial: 50 mg · 100 mg

MOQ on requestGet quote →

3-mer

AHK-Cu

≥99.0%

Copper peptide AHK

CAS: Complex; listed on batch COA
Vial: 50 mg · 100 mg

MOQ on requestGet quote →

See the full library

Before a first lot

Questions manufacturers ask.

What lead times and reservation can you commit to for bulk supply?

Lead time is quoted per active, grade, and quantity, and for ongoing programmes we can reserve capacity against a forecast so a scheduled run is not exposed to queue position. Share your expected volumes and cadence at inquiry and we will give you lead times we are prepared to commit to rather than aspirational ones.

Which method do you use to verify copper content?

It depends on what your release and your client's specification require. Atomic absorption spectroscopy, ICP-MS, and HPLC-DAD each quantify copper with different strengths, sensitivities, and assumptions, and we would rather agree the appropriate method with you than default to one blindly. Our Field Note comparing AAS, ICP-MS, and HPLC-DAD for copper quantification lays out the trade-offs we weigh.

Is the lot documentation defensible at our client's audit?

Ask sales for the matching batch COA and tell us the client's specification before quotation. We will identify which identity, purity, copper-content, ratio, or UV-Vis records already exist and which require a separately agreed scope; the resulting packet should be reviewed against the client's own audit criteria.

Do you provide stability data, and to what protocol?

We can share copper-peptide stability evidence framed against ICH Q1A, distinguishing what real-time and accelerated studies actually support for a coordinated-copper active, and provide lot-relevant data on request. Because accelerated conditions can mislead for a coordinating metal complex, we are explicit about that limit; our real-time-versus-accelerated Field Note explains where each applies.

From the library

The chemistry we work from, written down.

Lot Data Primer

What to Check on a GHK-Cu COA Before You Buy

Read

Lot Data Primer

Why Cu²⁺ : Peptide Ratio Matters — A 90-Second Quality Check for Formulators

Read

Atelier Methods

Real-Time vs Accelerated Stability for Cu-Peptide Actives — What ICH Q1A Says and Doesn't

Read

Atelier Methods

Atomic Absorption, ICP-MS, or HPLC-DAD — Which Method for Copper Quantification in Cu-Peptide Lots

Read

Other work

Skincare Formulators

Bench formulators working GHK-Cu and AHK-Cu into serums, creams, and ampoules — where coordination integrity, carrier compatibility, and the blue of the lot decide whether the formula holds.

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Brand Owners

Brands building copper peptide into a hero ingredient — where the sourcing story, the authenticity of the coordination, and COA literacy become part of how the product is sold.

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Hair & Scalp Brands

Brands formulating copper peptides into scalp and hair products — kept to cosmetic and educational ground, with the coordination chemistry and carrier stability that a leave-on or rinse-off context demands.

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From the Atelier

Sample a Cupratec lot.

First response under 24 hours. Ask sales for a sample and its matching batch COA, then specify any UV-Vis, Cu²⁺ : peptide ratio, or formulation-feasibility evidence the project requires so availability, timing, and cost can be confirmed.

For a contract manufacturer, the lot record must support both internal and client review.