The art of henna is quite complex: this powder of vegetable origin colors the hair according to your original color, and they are two types of henna, natural henna and neutral henna .
What is henna?
In ancient times, in Egypt and in the Roman Empire, henna was used for the coloring of tissues … and hair. In India, it was first used to give volume to the hair and protect them. This henna story illustrates a fundamental difference. It is necessary to know that there are basically two types of henna: natural henna and neutral henna. The first is made from a plant originally from India and the Arabian peninsula, called Lawsonia inermis, whose leaves contain a natural red-orange pigment, the lawsone.
The second comes from another plant, native of the subtropical regions and called Cassia obovata. The leaves of the latter do not contain a coloring pigment. These two henna are made in the same way: the leaves are first soaked in water, then dried and finally reduced to fine powder. Their uses are however different.
Logically, natural henna is used to obtain hair coloring based on natural products and to make tattoos. The purpose of neutral henna is to fortify the hair and bring it shine. Mixed with other vegetable powders, it can also be used in coloring. This is the basic principle of henna: depending on the natural color of the hair and the desired color, henna powders are mixed with other vegetable powders such as walnut husk, cinnamon, turmeric, hibiscus. So that multiple variations are possible.
For example, garnet brown henna is obtained with natural henna and ten other plants. There are also black henna from India, red henna from Yemen, henna from Rajasthan, etc., for the coloring of brown, red and dark brown hair. For blond hair or light brown hair, it is essential to use neutral henna.
Benefits of Henna for Hair Coloring
A natural coloring with henna is obtained by mixing, with a wooden spatula, powder with hot water (attention, never boiling), then by application in thick layer and laying under a film of food. The necessary amount of henna powder depends on the length of the hair: 50 g if you only want a coloring of the roots, 100 g if you have short hair, 150 g for medium hair and finally 250 g for long hair.
It must also be known that the final color appears only after three or four days. If you use henna to cover white hair, you will need to do two colorations because they are indeed thicker. Another difficulty: an optimal result requires modifying the pH of the preparation so that the scales of the capillary fiber can open and that the success of the coloring is ensured. You will need to add an acidic compound (a little lemon juice for example) to the natural henna paste alone, and a basic compound like baking soda if you choose black or indigo henna.
No known synergies.
Benefits of Henna for Hair
Used alone, in hair care or mask, neutral henna will have a protective and protective action on the hair. It also brings volume and shine. If you use it as a mask, be sure not to leave it for more than 30 minutes, as there is a risk of discoloration.
To moisturize the hair: olive oil.
How to choose henna?
It is chosen first according to your original color and the desired result. More generally, it is essential to buy a henna 100% pure and without additive. It is necessary to know that certain powders contain metallic salts, which are toxic, and / or paraphenylenediamine (PPD), which can cause allergies.