Blacks

Black Semi-Permanent Hair Colours by NXT

About Blacks

When only the darkest of shades will create the depth, drama and impact your client desires, black is the only colour choice. Our semi-permanent Natural Black hair colour is dark, mysterious and perfect for bringing out the best in darker complexions. As with all our trade-only hair colours you’ll get an added shine that adds beauty to the look.

Our tone-on-tone black has been formulated to last between 18-24 washes. It’s free from ammonia, parabens, PPDs and other harmful chemicals. They are gentle enough on the hair to be used straight after perming, relaxing or straightening treatments (vary the development time accordingly).

For easy application, apply to clean towel-dried hair using a tint bowl and brush. The dye should be and mixed one part black with two parts of our specialist low peroxide cream developer. Normal development time is 20 minutes, but adjust if using heat or if the hair has just been permed or straightened. For more intense, longer-lasting colour apply to dry hair. As a hairdresser it is your responsibility to carry out a patch test at least 48 hours before colouring the hair. If irritation or there is the appearance of redness do not carry out the service.

How it works

NXT mildly-oxidising semi permanent colours are sometimes referred to as tone-on-tone, demi, and quasi-permanent colours. When the Black shade is mixed with the releaser and applied to the hair, a series of clever chemical reactions occur to deploy the hair colour. Small and medium colour molecules in the dye penetrate the cuticle and in part the cortex to oxidise it and inject new pigments. These are washed out of the hair in 18-24 shampoos.

When the mixture of Black and the specialist NXT releaser is applied to the hair, it penetrates the cuticle and in part the cortex, which is oxidised by the hydrogen peroxide found in the releaser. The chosen shade then deposits small and medium colour molecules to change the appearance of the hair. As the colour is ammonia free and developer very low in strength, much of the new pigment is closer to the surface. Therefore, these semi-permanent colours have a stunning high shine.

It’s all down to a series of clever chemical reactions. Once the colour pigments, when mixed with the releaser, have penetrated and oxidised within the hair’s cuticle (and to a lesser extent the cortex) the colour molecules from the Black shade are released into the hair shaft and the new hue is created. These colours are light-reflecting and deliver high shine as most of the colour pigment is deposited closer to the surface.

The semi-permanent colour change occurs in the cuticle and in part the cortex, which is penetrated and mildly oxidised by hydrogen peroxide in the releaser. Small and medium colour molecules in the Black dye release the new pigments to create a beautiful new hue. As most of the change occurs close to the surface these quasi permanent colours deliver a high shine.

To allow the Black to change the appearance of the hair, the colour, mixed with the developer first needs to penetrate the cuticle and in part the cortex and oxidise it. Once these chemical reactions have taken place, the small and medium colour molecules and pigments are deposited in the hair structure for colour that lasts for up to 24 shampoos.

NXT Mildly-Oxidising Semi Permanent Black shades allow you to transform the appearance of your client’s hair through several chemical reactions. The hydrogen peroxide in the releaser allows small and medium colour molecules to penetrate the cuticle and in part the cortex and oxidise it. As much of the pigment in the new colour is close to the surface you’ll be wowed by the high shine – especially on virgin hair.

Colouring hair with NXT mildly-oxidising semi-permanent shades is so simple that it can be easy to forget that there is actually some pretty clever science taking place. The hydrogen peroxide in the releaser, along with the colour pigments penetrates the cuticle and in part the cortex and mildly oxidises it.. Another chemical reaction sees the small and medium colour molecules from the Black shade deposited into the hair and bond with the hair’s structure to change the appearance of the locks for 18-24 shampoos.