You might be wondering, what makes demi-permanent hair color so special? It's all about the science behind it! These types of colors don't penetrate the hair shaft as deeply as permanent colors, which means they won't damage your hair as much. Instead, they coat the hair cuticle with a thin layer of color that gradually fades over time.
This is where things get really interesting, folks! The porosity of your hair plays a big role in how long the color lasts. If you have porous hair, the color might not last as long because it can absorb and release the color molecules more quickly. On the other hand, if you have non-porous hair, the color can last longer because it has a harder time penetrating the hair shaft.
