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Research profile

GHK-Cu — research profile

3 min readUpdated on 2026-07-03

Identity & structure

GHK-Cu is the tripeptide glycyl-L-histidyl-L-lysine complexed with a copper(II) ion: a copper peptide naturally present in human plasma and widely characterised in the literature.

Its short three-amino-acid sequence makes it a well-defined, reproducible compound.

Research fields

GHK-Cu is the subject of research in the fields of the extracellular matrix, skin biology and experimental cosmetology.

These mentions are factual and neutral: they describe fields of study, without asserting any effect or benefit.

Characterisation & quality

Each batch is verified for purity by HPLC (> 99%) and its identity is confirmed by mass spectrometry.

A certificate of analysis (CoA) accompanies the compound and documents these checks.

Laboratory handling

The compound is supplied lyophilised. In a research context, it is reconstituted with a suitable diluent.

Mixing is done gently — roll the vial rather than shaking it — away from light.

Storage & stability

In lyophilised form, the compound is stored long term at −20 °C and short term at +4 °C.

Once reconstituted, it is kept at +4 °C for a limited time, away from light.

Strictly educational and scientific content. No effect, benefit or human use is described. Products are intended solely for laboratory research (RUO): they are neither medicines nor food supplements. For any health question, consult a qualified professional.