Macau is an essential amino acid complex that is present in capillary keratin, which is not product naturally by the human body, so it must be acquired through feeding or applied directly on the hair. With the replacement of the substance, the surface and inner components of the threads can be rebuild, which brings several benefits to the hair, especially the thin ones.

When our hair is very fragile and damaged, there is an increase in negatively charged sites on its surface. We can verify this through an electron microscope, for example, when perceiving open scales in the capillary cuticle. And Macau complex acts as a cation that interacts with negatively charged sites.

That is, by having a low molecular weight and double positive charge, the Macau complex is able to penetrate easily through the various layers of the hair fiber and be rapidly absorbed.

So when we provide the amino acid for damaged hair, it has the ability to rebuild wires from the outside in.