You know the trendy terms for hair color, like balayage or shadow roots, but what about single-process and double-process colors? What do they mean, and is there a difference?
A single process refers to one application, while a double process involves two or more applications, but there is more to it regarding these hair coloring techniques.
Luckily, we can help with these hair lingo terms to prevent confusion.
What is Single Process Hair Coloring?
A single-process color is a coloring process that can be achieved in one step. It can range from an all-over permanent hair color to highlights that do not need gloss for toning.
5 Single-Process Hair Color Ideas

Here are some great examples of using hair coloring hues to achieve a single process:
1. Chocolate
A chocolatey brown easily achieves a rich, warm hue in a single session, but it will depend on your starting color. If you are two shades from the chocolate brown, consider using it as your single-process color to match.
2. Espresso Lowlights
When you can achieve a color in one step, it is considered a single-process color. Here, we think of dark espresso lowlights that add dimension to your hair, especially if you have a brow, and you can achieve them without using a toner or bleaching.
3. Dirty Brunette
Everyone has heard of dirty blonde, but what about dirty brunette? It is a trendy hair color that is low-maintenance, featuring golden blonde highlights that complement your brown base.
4. Black Sapphire
When it comes to all-over shades, nothing is more sleek and trendy in a single hair color process than black sapphire. The blue-tinted black tone will give your strands personality.
5. Honey Blonde Highlights
To add dimension to your hair, consider using a single-process technique to achieve honey-blonde highlights. Depending on your starting color, the warm tone does not need a toner after bleaching.
Find out how we can help you achieve a perfect balayage for your curly hair.
What is a Double Process Hair Color?

By now, you can already guess the double-process hair color. To achieve your desired outcome, you can opt for a two-color service in one visit to our salon. It can include bleaching to lighten the hair, followed by a toner using permanent hair color with glaze or gloss added.
5 Double Process Hair Color Ideas
Here are some great examples of using hair coloring hues to achieve a double process:
1. Chocolate Lilac
This new color trend features a chocolate brown base with different tones of lilac purple throughout your hair. To make the lilac stand out, our colorists bleach your strands before adding the lilac tone, giving it a double process.
2. Mushroom Brown
Another hot hair color is mushroom brown, which is here to stay. It consists of varying shades of gray and brown, resembling the color of mushrooms. The color must be ashy and cool-toned, so our colorists use a toner after adding the highlights or lowlights to help achieve this trend.
3. Coral
If you want a bright, fun color, then coral is the perfect choice. You will have your hair bleached to lighten it, starting with your natural hair color, and then we will apply a bold coral permanent color over it.
4. Platinum
Achieving the icy platinum blonde is not easily accomplished. We will first bleach your hair to remove all your natural pigments, and you may need another bleaching session with a toner to help maintain the ice-cold hue look.
5. Pastel
We must lighten the hair before using the pastel color you choose.
Wrap-Up: Single Process and Double Process Color
Sometimes, you would love to have everything double, as two is better than one. Still, this does not always apply, especially to your hair. Be kind to your hair by avoiding a double-process color unless you want to go extreme.
Most importantly, discuss your coloring ideas with your Haste Hair Professional, considering what you want to achieve to develop the best hair coloring plan. Book a hair coloring consultation with us today.
FAQ
What is the difference between a single and double process?
The double process is coloring the base color and adding highlights as the second step. The single process does not include highlights unless they are done separately.
Can a single process of hair coloring damage your hair?
No, it does not damage the hair. It makes dull hair look shiny and vibrant. We can place partial highlights around the face area to brighten it for a framing effect or use partial to half highlights on only parts of your head.
Can a single process lighten my hair?
A single-process usually occurs when you apply an all-over color to darken or lighten your hair, adding dimension and making it darker or lighter than your natural hair tone.