What is in hair dye?
There are two main ingredients in hair color: hydrogen peroxide, or the oxidizing agent, and ammonia. The hydrogen peroxide helps initiate the color-forming process and creates longer-lasting color. The
larger the volume of this developer, the greater amount of sulfur is removed from the hair. Loss of sulfur causes hair to harden and lose weight. Ammonia is an alkaline acts as a catalyst when the permanent hair color comes together with the peroxide. Ammonia separates the cuticle and allows the hair color to penetrate the cortex of the hair. The other ingredient in hair is PPD or paraphenylediaamine which is the chemical in hair dye that gives your hair the desired color effect.
larger the volume of this developer, the greater amount of sulfur is removed from the hair. Loss of sulfur causes hair to harden and lose weight. Ammonia is an alkaline acts as a catalyst when the permanent hair color comes together with the peroxide. Ammonia separates the cuticle and allows the hair color to penetrate the cortex of the hair. The other ingredient in hair is PPD or paraphenylediaamine which is the chemical in hair dye that gives your hair the desired color effect.
How does hair react with Hair Dye?
Hair dye works in different ways depending on the type of coloring. There is temporary hair dye, bleaches, and permanent hair dyes. Temporary or semi-permanent hair dyes deposit acidic dyes onto the hair shaft and contain small pigment molecules that can go into
the hair shaft. A small amount of peroxide then triggers the hair coloring process. Shampooing will eventually fade and remove temporary hair color. Temporary hair dyes normally don't contain ammonia, which means that the hair's natural color is retained once the product washes out. Bleaches are used to lighten hair color. The bleach reacts with the melanin in hair, removing the color in an irreversible chemical reaction. The bleach oxidizes the melanin molecule causing it to become colorless. However, bleached hair will normally have a pale yellow tint. The yellow color is the natural color of keratin in your hair. Permanent hair dyes are next. The permanent hair dyes work similarly to the temporary ones. Once the cuticle is open with the ammonia, the dye reacts with the inner part of the hair, the cortex, to deposit the color. The peroxide is used as the developer or oxidizing agent. Peroxide breaks chemical bonds in hair, releasing sulfur. As the melanin is decolorized, a new permanent color is bonded to the hair cortex. Hair dyes often come with conditioners. The conditioners close the cuticle after coloring to seal in and protect the new color.
the hair shaft. A small amount of peroxide then triggers the hair coloring process. Shampooing will eventually fade and remove temporary hair color. Temporary hair dyes normally don't contain ammonia, which means that the hair's natural color is retained once the product washes out. Bleaches are used to lighten hair color. The bleach reacts with the melanin in hair, removing the color in an irreversible chemical reaction. The bleach oxidizes the melanin molecule causing it to become colorless. However, bleached hair will normally have a pale yellow tint. The yellow color is the natural color of keratin in your hair. Permanent hair dyes are next. The permanent hair dyes work similarly to the temporary ones. Once the cuticle is open with the ammonia, the dye reacts with the inner part of the hair, the cortex, to deposit the color. The peroxide is used as the developer or oxidizing agent. Peroxide breaks chemical bonds in hair, releasing sulfur. As the melanin is decolorized, a new permanent color is bonded to the hair cortex. Hair dyes often come with conditioners. The conditioners close the cuticle after coloring to seal in and protect the new color.