Product Introduction
Myristoyl pentapeptid-4 is a signal peptide that specifically acts on keratin, which can activate the expression of human keratin gene, promote keratin synthesis, help hair growth, and make hair richer and stronger.
Mechanism of action
The main component of hair is keratin, which is an important nutrient required for hair growth. Keratin is a fibrous structural protein, mainly composed of cysteine-rich amino acids, which are cross-linked to each other through disulfide bonds (-S-S-), giving keratin high hardness and elasticity. Keratin forms the basic structure of hair and determines its strength, elasticity, and thickness.
Hair fibers are composed of three layers of structure: pelt, pelt, and pith. The fur is the outermost layer of hair fibers and consists mainly of five to twelve layers of hard β-keratin. Its main function is to protect the inner layer, resist external stimulation, protect sebum, reduce water loss, and keep hair soft and shiny.
Post time: 2025-07-24