Henna has a positive impact on the follicles, and the hair, in some cases, it can accelerate the growth of hair. You need to bear in mind that henna fades faster than chemical dyes, however, it is not removed from the hair completely. Re-dyeing do a more intense color, because the henna builds up, filling the structure of the hair. At first, in order to achieve the correct color with this cumulative effect, you can apply henna on the hair once in a month and a half in the future fairly regularly to touch up the roots, and the bulk of the hair treated with henna every four to five months.
To strengthen the positive effect of henna, you can add other nutrients. Work well essential oil, for example, burdock or jojoba oil, decoctions of various herbs, or even whey. However, even without them, the henna affects the hair well, if you don't use it too often.
In the minds of most people, henna is strongly associated with a bright red color. In fact, when using it is possible to achieve any shades except bright blonde. It all depends on the organic additives used for the preparation of the coloring composition. They can be used to dye the hair in light brown, chestnut, black, brown and, of course, red.
For example, for obtaining blue-black hair color usually uses a mixture of henna and Indigo powder. For receiving the fiery-red, almost red hair using natural henna. To get a natural chocolate hair color you can take a mixture of black and red henna and add ground coffee. Correspondingly, the range of shades that you can get with henna is extremely wide.
Of course, henna is not a panacea, it has a drying effect, so it is advisable when it is used regularly apply moisturising balms and masks for hair. The effect is seen when too frequent applications, so it is not necessary to apply henna for all hair length every month once you have achieved the desired shade. If you have naturally very dry hair, along with scalp, it is better to abandon this method of staining.
After you use henna to change the color of the hair with artificial colors is almost impossible. Henna coats the hair tightly against ingress of extraneous coloring pigments, so if you want to repaint in a different color, will have to wait until the hair is colored with henna, it'll grow back. In some cases, the reaction of henna and chemical dye can be unpredictable, hair can purchase unnatural shades down to green or blue.