The Matrixyl Family Compared: Matrixyl vs Matrixyl 3000 vs Matrixyl Synthe'6
Three trade names that blur on a brief but are three different molecules on a bench. The INCI components behind each Matrixyl-family active, what the matrikine claim each supports, and why a purchase order should always name the INCI — not just 'Matrixyl'.
Published June 2, 2026 · 8 min read · By Pepoderma Regulatory Team
"Matrixyl" is one of the most-requested words in a collagen-support brief and one of the most expensive to leave unqualified. The Matrixyl family is not a single ingredient — it is a set of distinct lipidated signal peptides (matrikines), each with its own INCI name, CAS, and analytical workflow, sold under similar trade names by the same originator. A purchase order that just says "Matrixyl" routinely ends in a sample swap. This guide separates the three most-specified family members at the level that matters for formulation and the on-pack claim: what each one actually is, the matrix story each supports, and how they differ on the bench.
What is the difference between Matrixyl, Matrixyl 3000, and Matrixyl Synthe'6?
They are three different actives. The original Matrixyl is Palmitoyl Pentapeptide-4, a single lipidated KTTKS peptide derived from a procollagen fragment. Matrixyl 3000 is a defined blend of two matrikines — Palmitoyl Tripeptide-1 and Palmitoyl Tetrapeptide-7. Matrixyl Synthe'6 is a single peptide, Palmitoyl Tripeptide-38, studied around a broader multi-component matrix signal. All three are studied as proposed signals to support collagen and the wider extracellular matrix, all carry a palmitoyl tail for delivery, and all should be specified by INCI on the PO to avoid being quoted the wrong one.
Identity reference
| Trade name | INCI component(s) | CAS | Peptide motif |
|---|---|---|---|
| Matrixyl | Palmitoyl Pentapeptide-4 | 214047-00-4 | Pal-KTTKS (procollagen I fragment) |
| Matrixyl 3000 | Palmitoyl Tripeptide-1 + Palmitoyl Tetrapeptide-7 | 147732-56-7 + 221227-05-0 | Pal-GHK + Pal-GQPR |
| Matrixyl Synthe'6 | Palmitoyl Tripeptide-38 | 1447824-23-8 | Pal-Lys-Met(O2)-Lys |
Each ships from Pepoderma with the INCI name(s), CAS(es), and an allergen and trace-impurity sheet for CPNP and equivalent notifications. The Matrixyl 3000 documentation reflects both component INCI names and both CAS numbers, because it is a defined two-component blend rather than a single molecule.
1. Matrixyl — Palmitoyl Pentapeptide-4
The original. The peptide moiety is KTTKS, a five-residue stretch lifted from the C-propeptide of human type I procollagen; the palmitoyl chain on the N-terminus turns a polar, bench-shy peptide into a stratum-corneum-friendly amphipath that can reach the dermal fibroblasts the biology was written about. The proposed story is a procollagen-derived signal repackaged into something a topical carrier can deliver — framed as support for firmness and the appearance of fine lines, not an immediate effect. It is the family member to specify when a brief wants the single, best-known matrikine.
2. Matrixyl 3000 — a two-matrikine blend
Matrixyl 3000 is a defined blend of two lipidated peptides working side by side: Palmitoyl Tripeptide-1, built on the GHK motif with a palmitoyl tail, and Palmitoyl Tetrapeptide-7, built on the GQPR motif with a palmitoyl tail. The design intent is two matrix-signalling fragments rather than one, and the documentation, dosing, and formulation all treat it as a combination. Because it is a blend, a brief that asks for "Matrixyl" and receives the single Palmitoyl Pentapeptide-4 has bought the wrong thing — name the product and the component INCIs.
3. Matrixyl Synthe'6 — Palmitoyl Tripeptide-38
The newest of the three is a single peptide, Palmitoyl Tripeptide-38, sequence Pal-Lys-Met(O2)-Lys (note the oxidised methionine). It is studied around a broader, multi-target matrix signal, and the originator's marketed narrative spans several matrix components — collagen I, III and IV, fibronectin, hyaluronic acid, and laminin among them. For a formulator the practical translation is a matrikine that is positioned as "broad-spectrum matrix support," framed at the designed-to-support level, and that sits as a complement to — rather than a duplicate of — the other two.
How they differ on the bench
The three share a formulation profile because they share the palmitoyl-delivery strategy, but the differences are worth knowing:
- All three are lipidated and reward oil-phase or co-solvent loading rather than a straight water add. Pre-disperse in a small polysorbate or polyglyceryl slurry at moderate temperature, then carry in on the cool-down train.
- All three need pH held in the 5.0–7.0 band. Alkaline drift hydrolyses the palmitoyl amide bond, which kills the delivery story and gives a stability programme a second-peak problem on HPLC.
- The analytical method differs from an unmodified peptide: peak-integration HPLC runs on a wider-pore column and a shallower gradient, with mass-spec confirmation of the lipidated mass.
- Matrixyl 3000 carries two peaks by design (two component peptides), so its identity and stability chromatograms read differently from the single-peptide members.
For the carrier and stability detail in your own emulsion, our peptide-stability-in-emulsions guide covers the work rather than restating a single figure here.
Where they sit in a stack
Because all three are signal peptides studied on matrix support, they can be layered with each other for a broader matrix-signal claim, or — more commonly — combined across mechanisms: a Matrixyl-family matrikine for the signal arm, a neurotransmitter peptide (SNAP-8, Argireline) for the expression-line arm, and a carrier peptide (GHK-Cu) for the repair arm. Those three address distinct dermal-aging axes, which is why they combine rather than compete. The broader firming picture — including the non-matrikine signal peptides Syn-Coll and Tripeptide-10 Citrulline — is the subject of our firming-peptides comparison.
Claim language that stays safe
For every family member, keep the matrix story at the studied/proposed level — "a matrikine studied as a signal to support collagen and the wider matrix," "designed to support the appearance of firmness." Avoid efficacy percentages, avoid drug-style structure/function promises, and make sure any substantiation reduces to the specific INCI molecule on the label.
Talk to our regulatory team
Specifying a Matrixyl-family active?
Name the claim and your base chemistry and Pepoderma will send the INCI documentation, the right analytical method note, carrier guidance, and samples for the family member that fits — Palmitoyl Pentapeptide-4, the Matrixyl 3000 blend, or Palmitoyl Tripeptide-38.
Frequently asked questions
- Is Matrixyl the same as Matrixyl 3000?
- No. The original Matrixyl is Palmitoyl Pentapeptide-4 (CAS 214047-00-4), a single lipidated KTTKS peptide. Matrixyl 3000 is a defined blend of two different matrikines — Palmitoyl Tripeptide-1 (CAS 147732-56-7) and Palmitoyl Tetrapeptide-7 (CAS 221227-05-0). They are regulated, dosed, and formulated differently, so a purchase order that just says 'Matrixyl' can end in an expensive sample swap. Specify the product name and the component INCI names on every PO.
- What is Matrixyl Synthe'6?
- Matrixyl Synthe'6 is the trade name for Palmitoyl Tripeptide-38 (CAS 1447824-23-8), a single lipidated peptide with the sequence Pal-Lys-Met(O2)-Lys. It is a matrikine studied around a broader, multi-component matrix signal — the originator's narrative spans several matrix components including collagen I, III and IV, fibronectin, hyaluronic acid, and laminin. It is a distinct molecule from the original Matrixyl and the Matrixyl 3000 blend, framed at the designed-to-support level rather than as an efficacy claim.
- Why do the Matrixyl-family peptides need oil-phase or co-solvent handling?
- Each carries a palmitoyl tail that makes the molecule amphipathic: the lipid partitions into the stratum-corneum lipids so the peptide moiety can reach the viable epidermis. That same hydrophobicity means a straight water add tends to form agglomerates, so the active is best pre-dispersed in a small polysorbate or polyglyceryl co-solvent slurry at moderate temperature, then carried into the batch on the cool-down. Hold pH in the 5.0–7.0 band — alkaline drift hydrolyses the palmitoyl amide bond and adds a second peak to the stability chromatogram.
- Can the three Matrixyl-family actives be used together?
- Yes — because all three are signal peptides studied on matrix support, they can be layered for a broader matrix-signal claim. More commonly a formula combines one Matrixyl-family matrikine (the signal arm) with a neurotransmitter peptide such as SNAP-8 or Argireline (the expression-line arm) and a carrier peptide such as GHK-Cu (the repair arm), since those address distinct dermal-aging axes and combine rather than compete. Keep the finished pH around 5.5–6.5 and add the lipidated members via a co-solvent pre-disperse.