First, let’s quickly cover how permanent hair colors work. They’re usually formulated with ammonia, which helps to open up the hair cuticle, so the pigment can penetrate deep within the hair shaft. It’s this process that makes permanent hues so intense and helps them last longer than any other color. It’s also how certain permanent colors, such as Koleston Perfect and Illumina Color, are able to give your client up to 100% gray coverage.
But demi-permanent hair colors work quite differently. They tend to be ammonia-free, yet they feature an alkali ingredient that gently opens just the outer layer of the hair, so color molecules can rush in. Because this coloring process isn’t as intensive, demi-permanent colors don’t last as long as permanent shades. However, they are also gentler to hair, and offer softer regrowth in between color appointments.
On average, your client’s demi-permanent shade will last around 24 washes, but it may stay true even longer if they’re working bold shades or starting with a lighter base. A demi-permanent color is the perfect pick for anyone who wants to transform their shade, banish brassy tones, enhance highlights and balayage, or even create a soft root smudge. Put simply, it’s ultra-versatile.
Is Demi-Permanent Hair Color Damaging?
Some demi-permanent hair colors offer low damage, and some, like Shinefinity, give your client zero damage. It all depends on the color product you’re working with. As the No.1 salon color brand in the world*, our products at Wella Professionals harness the latest technology to ensure all formulas are kind to the hair. So your client doesn’t have to compromise to enjoy rich, radiant results they can make their own.
Try These Demi-Permanent Hair Colors: