Acetyl Tetrapeptide 3

The scalp peptide on its own

Acetyl Tetrapeptide-3, CAS 827306-88-7, is the peptide at the heart of Capixyl-type hair complexes. This listing supplies it alone as a water-soluble solution for scalp serums, tonics and leave-on hair products aimed at the look of fuller, denser hair. The full vehicle INCI is confirmed on the CoA for each lot.

Peptide alone or the full complex?

The full Capixyl Peptide complex combines Acetyl Tetrapeptide-3 with red clover extract and a dextran vehicle. Buying the peptide alone lets you set its level independently and choose your own botanical partners, for example a different plant extract or a caffeine-based scalp tonic. If your formula sheet or claim support names the complex, buy the complex.

Formulating with Acetyl Tetrapeptide-3

Process

Add the solution in the water phase during cool-down, below 40 °C, and mix gently.

Scalp bases

Scalp products need to dry quickly and leave hair clean. Water-based tonics with a little glycerin, light gels and leave-in sprays are typical. Some brands add a small amount of alcohol for a fast-drying feel; check peptide clarity in the final base. This card does not state a use percentage; follow the supplier documentation.

Pairing ideas

Acetyl Tetrapeptide-3 pairs with Biotinoyl Tripeptide-1, another hair-focused peptide, and with panthenol for scalp comfort. Add each active separately in cool-down.

Example: scalp tonic architecture

Water, a little glycerin, panthenol, Acetyl Tetrapeptide-3, a second hair peptide and a validated preservative, with an optional botanical extract. Exact levels come from the supplier documentation. A dropper or nozzle applicator helps target the scalp.

Not to be confused with

Eyeseryl is Acetyl Tetrapeptide-5, a different peptide for the eye contour. Acetyl Tetrapeptide-3 belongs in hair and scalp care.

Claims

Keep claims cosmetic: fuller-looking, denser-looking hair and a healthier-looking scalp.

Storage

Keep tightly closed, cool and away from light, and refrigerate opened material where practical.

Designing a scalp routine

Scalp products often work as a routine: a gentle shampoo, a leave-on serum or tonic, and sometimes a weekly scalp mask. Acetyl Tetrapeptide-3 belongs in the leave-on step, where it stays on the scalp. Rinse-off products are less suited to a peptide story because contact time is short.

Usage instructions on the label

Clear directions help people use a scalp serum correctly: part the hair, apply to the scalp, massage gently and leave on. Consistent daily use is usually part of the story for scalp products, so say so plainly on the pack.

Lot documentation

Record appearance and pH on arrival and keep the CoA with your batch records.

Ordering

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 $50 or more. Compare all peptide solutions.