INCI: Palmitoyl Hexapeptide-52 - Also known as: Pal-VGVAPG, Elastin-Derived Signal Peptide

QUICK FACTS

What is Palmitoyl Hexapeptide-52?

Palmitoyl Hexapeptide-52 is a palmitoylated synthetic hexapeptide whose amino acid sequence — Val-Gly-Val-Ala-Pro-Gly (VGVAPG) — is derived from the repeating hydrophobic domain of tropoelastin, the precursor protein to elastin. This VGVAPG sequence is a naturally occurring matrikine that is released when elastin in the extracellular matrix undergoes enzymatic degradation — its presence signals to skin cells that elastin repair or replacement may be needed, making it one of the most studied elastin-derived signal peptides in the cosmetic peptide category.

The palmitoyl modification serves the same purpose as in other palmitoylated peptides: attaching a C16 fatty acid chain to the hydrophilic peptide sequence allows it to partition into the lipid-rich stratum corneum environment and penetrate toward the viable epidermis and upper dermis where fibroblasts and elastin-producing cells reside. Without this lipophilic modification, the VGVAPG hexapeptide would remain at the skin surface without reaching its target.

At Sweet Chemistry, Palmitoyl Hexapeptide-52 is the first-listed peptide in the five-peptide industry complex — appearing immediately after the [1% LINE] marker in every water-based formula. Alongside Palmitoyl Tetrapeptide-50, Heptapeptide-15, Palmitoyl Heptapeptide-18, Matrixyl (Palmitoyl Pentapeptide-4), and the two copper peptides, it forms part of a comprehensive seven-peptide industry complex that addresses collagen and elastin density appearance from multiple peptide mechanism directions simultaneously.

What does it do for skin?

Palmitoyl Hexapeptide-52 is studied in connection with elastin-associated fibroblast signaling. The VGVAPG sequence is researched as an elastin matrikine — a fragment released during elastin turnover that is studied in connection with signaling fibroblasts to initiate elastin biosynthesis in response to perceived matrix degradation. In this context, topical application of Palmitoyl Hexapeptide-52 may present the cell signaling environment associated with elastin renewal, potentially supporting the appearance of skin firmness and elasticity that is associated with healthy elastin content.

Research on VGVAPG-derived peptides has associated them with improvements in the appearance of skin firmness, elasticity, and the reduction of deep wrinkle depth — outcomes attributed to their studied association with fibroblast activity and the elastin matrix environment. These are research-based associations rather than clinical outcome claims, and individual results will vary.

Within Sweet Chemistry's independent clinical study of the Max Repair System, the combined system showed statistically significant improvement in skin density (associated with dermal collagen and elastin) in 70% of subjects within 4 weeks, and a measurable improvement in the appearance of fine lines and wrinkles in 68% of subjects. These results reflect the contribution of the complete multi-peptide and multi-active system, of which Palmitoyl Hexapeptide-52 is one consistent element. Individual results may vary.

In contrast to Matrixyl (Palmitoyl Pentapeptide-4) — whose KTTKS sequence is derived from pro-collagen — Palmitoyl Hexapeptide-52's VGVAPG sequence is derived from elastin. Together they address both the collagen and elastin dimensions of the skin's structural density appearance within the same five-peptide industry complex.

FOUND IN

In 3 Formulas as Part of the 5% Industry Peptide Complex

Palmitoyl Hexapeptide-52 is the lead peptide listed in the five-peptide industry complex across all three Sweet Chemistry water-based formulas — always the first industry peptide named after the [1% LINE] marker.

Nourishment - All Skin Types

Barrier Repairing Hydra-Serum 5% Industry Peptide Complex (incl. Palmitoyl Hexapeptide-52) - 1.0 oz / 30 ml

The Hydra-Serum delivers the full seven-peptide system (five industry peptides + two copper peptides) alongside 3% Matrikynes® bone peptides in a 40%-active emulsion — the most peptide-diverse formula in the Sweet Chemistry lineup.

Hydration - Dry to Normal

Elasticity Reinforcing Hydra-Cream 5% Industry Peptide Complex (incl. Palmitoyl Hexapeptide-52) - 1.7 oz / 50 ml

The Hydra-Cream pairs the seven-peptide complex with 3% Matrikynes® peptides and 2% THD ascorbate — elastin-associated and collagen-associated peptide signaling with vitamin C cofactor in the same 40%-active formula.

Hydration - Dry to Dehydrated

Elasticity Reinforcing Lipid-Cream 5% Industry Peptide Complex (incl. Palmitoyl Hexapeptide-52) - 1.7 oz / 50 ml

The Lipid-Cream delivers the full peptide complex within the most emollient formula in the lineup — comprehensive peptide density-supporting activity within a formula also carrying the full ceramide barrier system.

WORKS TOGETHER WITH

Collagen Signal Peptide Palmitoyl Pentapeptide-4 (Matrixyl)

INCI: Palmitoyl Pentapeptide-4.

Part of the five-peptide complex, always formulated alongside Palmitoyl Hexapeptide-52. Synergy Note: Matrixyl's KTTKS sequence is derived from pro-collagen; Palmitoyl Hexapeptide-52's VGVAPG sequence is derived from elastin. Together they address both collagen and elastin signaling dimensions of the structural density appearance goal within the same formula.

ECM Peptide Complex Matrikynes® Bone Peptides

INCI: Hydrolyzed Cow Bone Extract.

At 3% in all four formulas. Synergy Note: Matrikynes® provides broad-spectrum ECM-derived matrikine signaling from 315+ peptide sequences; Palmitoyl Hexapeptide-52 adds a specific elastin-derived signal sequence with its own research body. Together they represent ECM-derived and synthetic single-sequence peptide approaches to the same structural density appearance goal.

Copper Peptide Pair Copper Palmitoyl Heptapeptide-14 + Copper Lysinate/Prolinate

INCI: Copper Palmitoyl Heptapeptide-14, Copper Lysinate/Prolinate.

Always formulated alongside Palmitoyl Hexapeptide-52 in the industry peptide complex. Synergy Note: Palmitoyl Hexapeptide-52 is studied in connection with elastin biosynthesis signaling; the copper peptides are studied in connection with the lysyl oxidase-dependent cross-linking that matures newly synthesized elastin into stable fibers. Signal and cross-linking support for the same structural protein.

Stable Vitamin C THD Ascorbate

INCI: Tetrahexyldecyl Ascorbate.

At 2% in both creams and 7% in the Oil-Serum. Synergy Note: Vitamin C is the cofactor for the prolyl and lysyl hydroxylase enzymes associated with stable collagen and elastin cross-linking — its co-presence with Palmitoyl Hexapeptide-52 addresses both the elastin signaling dimension and the enzymatic maturation dimension within the cream formulas.