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Research area

Peptides and skin research

This corner has an unusually long publication history compared to the rest of the catalogue, and it also contains the one compound European regulators have issued explicit warnings about. Both facts belong on the same page.

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The mechanism

Copper, collagen and pigment

Two very different research threads sit under this heading. The first is dermatological: a copper-binding tripeptide that has been studied since the 1970s in the context of wound healing and extracellular matrix turnover. That literature is genuinely substantial and predates the current peptide market by decades.

The second concerns melanocortin receptors and pigmentation. It is a much shorter literature, and it is the one where several European regulators have published safety notices. We link to those notices rather than summarising them, because the wording matters.

Treating those two threads as one subject, which most supplier pages do, obscures the fact that one is well documented and the other carries active regulatory attention.

What is being investigated
  • Copper binding and extracellular matrix turnover
  • Fibroblast activity and collagen synthesis in vitro
  • Melanocortin receptor signalling and pigmentation
  • Published regulatory positions in the EU

Where this sits legally

The copper peptide has decades of dermatological literature and no approval as a medicine. The pigmentation compound has both a shorter literature and published regulatory notices. Those are different situations.

In this area

Compounds studied here

Three items across two research threads with very different track records.

Where we stop

What this page leaves out

No claims about appearance, and no before-and-after anything. The dermatological literature on copper peptides used routes and preparations that differ from what we supply, so comparing across them is already a stretch. For the pigmentation compound we point at the regulators’ own wording instead of writing our own.

Frequently asked

Questions about this area

Mostly about telling the two threads on this page apart.

Why does GHK-Cu have so much more literature than the rest?
Because it was identified in the 1970s and studied for decades in a dermatological context, long before the current research peptide market existed. Age of a literature is not the same as strength, but it does mean there is more independent work to read.
What are the regulator warnings about melanotan 2?
Several European authorities have published safety notices about it. Rather than paraphrase, the compound page quotes them and links to the source. If you are considering this compound, read those first.
Are collagen peptides part of this area?
No, and the distinction matters. Collagen peptides are a food ingredient regulated as such. They are not research material and they do not belong in the same conversation, however similar the word looks.
Why are there two GHK-Cu pens?
Different total content, so you can pick the one that fits the length of your series without either running short or leaving material unused. The concentration per click is stated on each product page.
Does topical research tell you anything about a pen?
Not directly. A lot of the dermatological work used topical application, and the route changes what reaches the tissue. Comparing across routes is one of the places where this literature is easy to misread.
Before you order

One old literature, one with warnings

We supply both and we say plainly which is which. The compound pages carry the regulatory notices in the regulators’ own words rather than ours.

For laboratory and research use only. Not for human or animal consumption. Not a medicine and not a food supplement. Sold to persons aged 18 and over. Compounds named on this page may appear on the WADA prohibited list.

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