Peptides · Emerging

Acetyl Tetrapeptide-3

INCI: Acetyl Tetrapeptide-3 · Hair-density peptide
Supports hair anchoringScalp support

A signal peptide used in scalp care to support a healthier follicle environment and fuller-looking hair.

What it is

Acetyl Tetrapeptide-3 is a signal peptide studied in hair care for its role in supporting the environment around the follicle, the matrix that anchors and supports each strand. It is used in scalp and hair-density formulas, often alongside botanicals and copper peptides, to support the look of thicker, fuller hair.

How it works

Supports the follicle environment

It is associated with strengthening the supportive matrix around the hair root, helping create better conditions for healthy-looking hair.

Complements scalp actives

It works as part of a scalp-support system rather than alone, alongside peptides, caffeine and botanicals.

The evidence

Acetyl Tetrapeptide-3 has emerging evidence in hair-density and scalp-support formulas; SENSCERA uses it as part of a wider scalp system.

Works well with

Works with Copper Tripeptide-1, caffeine and botanical scalp extracts.

Who it's for

Anyone focused on scalp health and fuller-looking hair.

Worth knowing

A supportive scalp peptide, part of a system for hair vitality rather than a standalone claim.

Evidence tiers reflect the general weight of published cosmetic-science literature on this ingredient, not a claim about any individual SENSCERA product. Cosmetic products support the appearance and condition of skin and hair; they are not intended to diagnose, treat, cure or prevent any disease. Individual results vary.