Peptides for skin research fall into four functional classes: signal, carrier, neurotransmitter and enzyme-inhibitor. Full Kiwi Peps dermal-research reference inside.
Peptides for skin research are grouped into four functional classes based on their in-vitro mechanism of action: signal, carrier, neurotransmitter-modulating and enzyme-inhibitor. Each class has established dermal-culture endpoints that laboratories use to compare lot performance and design comparative studies. GHK-Cu — the copper complex of GHK — is the single most cited signalling peptide across published dermal-research literature.
Dermal-research peptide classes
| Class | Example | In-vitro endpoint |
|---|---|---|
| Signal | GHK, palmitoyl pentapeptide (Matrixyl) | Collagen I/III, elastin, fibronectin transcripts |
| Carrier | GHK-Cu | Copper delivery, SOD and metallothionein expression |
| Neurotransmitter-modulating | Acetyl hexapeptide-8 (Argireline) | SNARE complex modulation, catecholamine-release assays |
| Enzyme-inhibitor | Palmitoyl oligopeptide | MMP-1 down-modulation |
Most-cited peptides for skin research
- GHK-Cu — the reference copper-complex signalling peptide with the deepest published citation history.
- GHK (uncomplexed) — used as a control for copper-independent signalling.
- Palmitoyl pentapeptide — dermal collagen-transcript reference in fibroblast culture.
- Acetyl hexapeptide-8 — SNARE-mechanism reference in expression-line dermal research.
COA verification for dermal-research peptides
- ≥98% HPLC purity on the target peptide backbone.
- For GHK-Cu — quantified copper content (~17–20% by mass).
- LC-MS mass confirmation for the target peptide.
- Endotoxin documentation where in-vitro cell culture is planned.
Peptides for skin FAQ
Which peptide is most cited in dermal research?
GHK-Cu — the 1:1 copper complex of the tripeptide GHK — is the single most extensively documented peptide in published dermal-research literature.
What are the four classes of peptides for skin?
Signal peptides (e.g. GHK), carrier peptides (e.g. GHK-Cu), neurotransmitter-modulating peptides (e.g. Argireline) and enzyme-inhibitor peptides (e.g. palmitoyl oligopeptide).
Is GHK-Cu the same as 'copper peptides'?
'Copper peptides' is a loose marketing term. GHK-Cu is a chemically defined 1:1 complex of GHK with Cu²⁺ — the specific species that carries the published research citations.
Where can I buy dermal-research peptides in New Zealand?
Kiwi Peps supplies GHK-Cu and related dermal-research references at ≥98% HPLC purity with third-party COA and same-day domestic dispatch. Research use only.
