The Secrets of Hair Dye: How Do Different Types of Hair Dye Work?

Ever wondered how those stylists achieve such perfect, glossy, and long-lasting hair color results? The truth is: it's not all down to them (although they do play a big part). In this article, we'll be taking a look at the science of hair dye and exploring how different types of hair dye work their magic.

So, if you've ever wondered why some hair dyes seem to fade so quickly while others maintain their vibrancy for weeks on end, read on!

How Hair Dye Works: The Basics

All hair dyes work by temporarily altering the structure of the hair shaft so that light reflecting off the hair is changed. This is done by opening up the cuticle—the outermost layer of the hair shaft—and injecting pigment into the cortex—the middle layer of the hair shaft. The cortex is where color lives, so by injecting pigment into this layer, you can change the color of your hair.

Types of Hair Dye

Now that we know how hair dye works in general, let's take a closer look at some of the most common types of hair dye and how they differ in their ingredients and effects.

Permanent Hair Dye

Permanent hair dye is, as its name suggests, designed to last indefinitely (or at least until your hair grows out and you fancy a change). This type of dye contains ammonia, which helps to open up the cuticle so that pigment can penetrate more easily.

Once the color has penetrated into the cortex, it is "set" by being sealed in with a second chemical called hydrogen peroxide.

One major downside of permanent hair dyes is that they can be quite harsh on your hair due to the presence of ammonia. This means that regular use can lead to dryness and breakage. Another downside is that they are generally difficult to remove once applied; even if you try to wash them out with shampoo, chances are some pigment will still remain in your hair.

Semi-permanent Hair Dye

Semi-permanent hair dye might not be as dramatic or long-lasting as permanent dye, but it's definitely worth considering for a few reasons. First of all, semi-permanent color doesn't require bleaching or heavy chemicals, making it a gentler option for your hair. Secondly, since it fades gradually over time, you don't have to worry about making a major commitment to a new color.

And finally, semi-permanent dye is often best applied by professionals at one of the best hair salons in Denver, meaning you can trust the end result will turn out just as you envisioned. So next time you're ready for a fun change in hair color, consider trying out semi-permanent dye - your locks will thank you!