Understanding the effects of dye on hair also helps to better understand colored hair and its specific needs. This way it's easier to know how to look after your hair and what products are right for them.
What does hair look like after being dyed?
Healthy hair — hair fibers are perfectly intact
For healthy hair, the hydrolipid film is intact and used to effectively protect against daily external aggressions. The keratin scales are perfectly positioned, smooth and tight. The hair is strong, shiny and silky.
Colored hair — hair fibers are aggravated
In the chemical process, keratin scales are removed, allowing the oxidants and dye to penetrate the hair fiber. This action is essential to change the color of the hair for a long time. This can also damage the hair structure.
Why is the hair less beautiful after being dyed?
At first, thanks to color, hair gets a burst of youthfulness and radiance. But very quickly, the damage inside the hair fiber starts to appear on the surface.
After repeated dyeing, the side effects on hair are readily apparent and the problems extend deep down into the hair fibers.
Affected by chemical dyes, the hydro-lipid film that coats the hair and prevents the loss of moisture no longer plays its role as a protective barrier. Hair then becomes dry and coarse.
Removed as a result of the dye, the keratin scales no longer ensure the smooth, glossy appearance of hair: it's left dull and is extremely difficult to style.
Deeply aggravated, the internal structure of the hair becomes weaker. The colored hair loses its structure: this is when the hair becomes brittle and split ends are likely to appear, which can make it look uncared for and frizzy.