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PepXtide

Cosmetic Science

GHK

Gly-His-Lys, without the copper

Reference entry · not stocked

8 more in Cosmetic Science
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Identity

Class
Cosmetic Science
Molecular weight
340 Da
Residues
3
Heavy atoms
49
Reference slug
ghk

These are published properties of the molecule, given for identification. Values we cannot confirm are omitted rather than estimated. What these terms mean.

What this compound is

The bare tripeptide, shown without the copper it usually carries. Comparing it with GHK-Cu in this library shows exactly what the metal adds and where it sits.

Sequence

GHK amino-acid sequence in one-letter code, numbered by residue position
1GHK
Three-letter code
Gly-His-Lys

The one-letter code gives the amino-acid backbone. Terminal modifications, where a compound carries them, are accounted for in the molecular weight above but are not visible in the letters.

Residue composition

Counted directly from the sequence above. GHK is built from 3 of the twenty standard amino acids across 3 positions.

By residue

Count of each amino acid in GHK
ResidueCodeCountShare
GlycineG · Gly133.3%
HistidineH · His133.3%
LysineK · Lys133.3%

By side-chain class

  • Nonpolar, aliphatic

    1 · 33.3%

    G

  • Positively charged

    2 · 66.7%

    H K

Side-chain classes follow the standard grouping of the twenty proteinogenic amino acids. Composition is arithmetic over the published sequence and says nothing about how the molecule behaves.

Others in Cosmetic Science

GHK-Cu

3 residues · 404 Da

A tripeptide present in human plasma that binds copper(II) with high affinity. The copper is sho…

In our catalogue

Argireline

6 residues · 889 Da

Six residues capped with an acetyl group at one end and an amide at the other, both of which are…

Reference entry

Hexapeptide-11

6 residues · 677 Da

Six residues, two prolines and two phenylalanines. The prolines force an extended backbone, so i…

Reference entry

Matrixyl core

5 residues · 564 Da

The five-residue core of palmitoyl pentapeptide-4, a fragment of type I collagen. The palmitoyl…

Reference entry

Oligopeptide-68

4 residues · 397 Da

Four residues, GHK extended at the other end instead. Three variations on the same tripeptide co…

Reference entry

SNAP-8

8 residues · 1075 Da

Argireline with two more residues on the end, and otherwise the same molecule. Worth seeing besi…

Reference entry

All 8 compounds in Cosmetic Science

This is a reference entry. Sequence, residue count, molecular weight and atom count are published properties of the molecule, given for identification. Nothing on this page describes an application, benefit, dose, route or outcome, and nothing here should be read as an offer to supply or as guidance for use in a person or an animal. Materials sold by PepXtide are for laboratory research use only, are not for human or animal consumption, and have not been evaluated by the FDA.