Lipopeptide (Palmitoyl Hexapeptide-12 / Biopeptide EL)

1 Identity

Defined single synthetic lipopeptide, an elastin hydrophobic-domain hexapeptide N-palmitoylated on the Val1 alpha-amino group. But see status: the trade product is not the molecule. and "elastin peptide". Sold as "Lipopeptide 10mg" by one seller and as "Lipopeptide (Biopeptide EL) (200mg)" by two others.

Sequence

Palmitoyl-Val-Gly-Val-Ala-Pro-Gly-OH (Pal-VGVAPG). Palmitoylation on the N-terminal alpha-amino group; free acid C-terminus.

Molecular formula

C38H68N6O8

Average mass

736.996 Da.

Monoisotopic mass

736.50986 Da monoisotopic neutral; [M+H]+ 737.51714.

Salt / variant note

Pal-GHK, that is Palmitoyl Tripeptide-1, sold as Biopeptide CL and already a separate record in this catalog, is the collision. Pal-KTTKS, sold as Matrixyl and in this catalog. Pal-GQPR. Palmitoyl Tetrapeptide-7, in this catalog. Palmitoyl Tripeptide-38, in this catalog. And the antibiotic and antifungal lipopeptides, which share the class name and nothing else.

2 Class & testing panel

Form

Single article

Testing panel

P1 — panel definition

3 Primary sources & evidence

The index reports the design and provenance of the literature, not a conclusion about effect.

Identity is settled and the formula is concordant across three independent sellers. The cosmetic efficacy literature is not reproduced and is not adopted.

4 Storage & specification

Storage

Lyophilized or as supplied, -20 degrees C plus or minus 5 degrees C, desiccated, protected from light. The palmitoyl chain makes the article prone to poor aqueous solubility and to adsorption onto container surfaces.

Shelf life

Provisional 24 months at -20 degrees C, assigned by protocol.