When you think about hair coloring semi-permanent hair dyes you are probably wondering what is the difference between demi-semi-permanent and semi-durable color?
So let's clarify; both do not permanently alter the natural pigment of our hair (no pigmentation occurs) which means that after rinsing, our hair retains its natural tone. However, what's the difference?
Demi-permanent hair dyes they have oxidative pigments, direct pigments and a minimum amount of ammonia or MEA, and nourishing ingredients. They are mixed with a developer of less than 3% or 10 vol. To prevent the oxidation (brightening) of natural pigments. Overgrowth will be minimally visible during flushing and no unwanted warm tones will occur. The hair will look fuller and shinier and the color will be airy and vibrant. With demi colors we can not lighten the hair but stay at the same pitch and change the reflex (PVT 5 is applied eg 5G). Refresh the existing color on the length (for example, we apply 5N length with 6N, one tone lighter). Shade or make blending gray hair (eg if natural hair is PVT 5 we apply 5A to reduce the difference between white, gray and natural hair). Neutralize unwanted warm undertones after decoration or lightening with permanent colors. Demi-permanent colors linger on hair for 12-24 days depending on the porosity of the hair, as well as hair washing and care products.