The Truth Behind Henna Hair Dye
Do yourself a favour and your hairstylists don't use Henna Hair Dyes.
It seems perfectly fine to use because it comes from the Health Stores, and its looks organic. Some products are organic, although most are a series of compounds and chemicals mixed together. It is essential to use safe chemical ingredients found in salon hair dye to open the hair cells and deposit the dye, unlike Henna which coats the hair. Here is an scientific explanation, " There are two kinds of melanin found in the hair: eumelanin (the most common and responsible for hair shades from brown to black) and phaeomelanin (responsible for yellowish-blond, ginger and red colors). Absence of pigment produces white/gray hair. Before any permanent color can be deposited into the hair shaft, the cuticle, or outer layer, must be opened. The insoluble formula then reacts with the cortex to deposit or remove the color….”
“The two main chemical ingredients involved in any coloring process that lasts longer than 12 shampoos are:
Hydrogen peroxide (also known as the developer or oxidizing agent) -- This ingredient, in varying forms and strengths, helps initiate the color-forming process and creates longer-lasting color. The larger the volume of the developer, the greater the amount of sulfur is removed from the hair. Loss of sulfur causes hair to harden and lose weight. This is why, for the majority of hair coloring, the developer is maintained at 30% volume or less.
Ammonia -- This alkaline allows for lightening by acting as a catalyst when the permanent hair color comes together with the peroxide. Like all alkalines, ammonia tends to separate the cuticle and allow the hair color to penetrate the cortex of the hair.”
Without the uses of these ingredients anything that goes on your hair to colour it, would be coating the hair. Henna coats and penetrates the hair permanently, even when the colour has faded. Trying to dye the hair with a commercial hair dye afterwards, like what is used in the DD&Co salon, the dye cannot penetrate the hair because the Henna treatment. The only way to remove the traces of Henna is to grow it out!! This means you are stuck with the red look for some time! Would you risk doing permanent damaging again by bleaching it?? No, just avoid Henna and leave it up to the people that trained for 4 years plus in Hair specialised chemistry and biology.