Palmitoyl Pentapeptide-4 Solution (Palmitoyl Pentapeptide-4, Pal-KTTKS)

Palmitoyl Pentapeptide-4 is the INCI name of the peptide sold as classic Palmitoyl Pentapeptide-4, also written Pal-KTTKS. This listing is the ready solution.

The original matrikine

Palmitoyl Pentapeptide-4 is where the matrikine story began. It is the five-amino-acid KTTKS sequence with a palmitic acid chain attached, the peptide behind classic Palmitoyl Pentapeptide-4, and it became the reference point that later collagen-story peptides are compared with. This listing is a ready solution. The INCI is Palmitoyl Pentapeptide-4 and the published CAS is 214047-00-4. It is a clear liquid, and the full vehicle INCI is confirmed on the CoA for each lot.

Classic, 3000 or Synthe 6

Three pages in our range are easy to mix up. This one is the classic single peptide. Palmitoyl Tripeptide-1 + Palmitoyl Tetrapeptide-7 Liquid is a two-peptide blend of Palmitoyl Tripeptide-1 and Palmitoyl Tetrapeptide-7. Palmitoyl Tripeptide-38 is the Synthe 6-class peptide. They are different INCIs, so the label must follow the CoA of the grade you actually use. All of them are in our peptide solutions.

Formulating with Palmitoyl Pentapeptide-4

Phase and temperature

Add it in cool-down, below 40 °C, with gentle mixing, and avoid long holds at high temperature. It goes into the water phase of serums and gels, or into a finished emulsion after cooling. The palmitoyl tail gives it some oil affinity, so check clarity in very clear gels.

Level

Take the use level from the supplier documentation for your lot.

Product types that suit it

Night serums, firming face creams, eye creams, neck creams and hand creams with a firmness claim. It is often the first peptide added to an existing moisturizer to give it a collagen-story upgrade.

Pairing ideas

Hyaluronic acid, ceramides, squalane, niacinamide and expression-line peptides. Add each active separately and check clarity, odor and viscosity after each addition instead of premixing several actives in one beaker.

Example night serum architecture

The level comes from the CoA, so no gram recipe is shown.

Claims

Describe skin that looks firmer and wrinkles that look less deep with regular use. Keep claims cosmetic and tied to appearance. Any before-and-after statement needs a test on the finished product, not on the raw material.

Testing the finished product

Run a stability check on the finished product at room temperature, at 40 °C and in a fridge for several weeks, and watch color, odor, clarity, viscosity and pH. Check the product in its final pack too, since pumps, droppers and jars expose it to air differently. A preservative challenge test on the final product is the standard step before launch.

Lot handling and storage

Record appearance and pH on arrival, compare them with the CoA, and keep the CoA with your batch records so each finished batch can be traced to its lot. Store tightly closed, cool and away from light, and respect the shelf life on the CoA.

Ordering

It is sold as a raw material for cosmetic formulation, not as a finished consumer product. Start with a small pack for bench trials and scale once your stability checks pass. It ships from Florida, usually within 1 to 2 business days, in the pack sizes shown above, and US shipping is free on orders of $35 or more.