|Posted on October 8, 2012 at 11:15 PM||comments ()|
HAIR HOLISTIC USES INDIGO,CASIA,AMLA,BUXUS 100% PURE
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Neutral henna" and "black henna"
Natural henna stains only a rich red brown. Products sold as "black henna" or "neutral henna" do not contain henna, but are instead made from other plants, or from other substances altogether.
So-called "neutral henna" does not change the color of hair. This is not henna powder; it is usually the powder of the plant Senna italica also known as Cassia obovata or a closely related Cassia species.
 "Black henna"
So-called "black henna" powder may be derived from indigo (from the plant Indigofera tinctoria). It may also contain unlisted dyes and chemicals. "Black henna" may contain p-phenylenediamine (PPD), which can stain skin black quickly, but can cause severe allergic reactions and permanent scarring. The FDA specifically forbids PPD to be used for that purpose, and may prosecute those who produce "black henna'. Artists who injure clients with "Black Henna" in the U.S. may be sued for damages.
"Black Henna" is a misnomer arising from imports of plant-based hair dyes into the West in the late 19th century. Partly fermented, dried indigo was called "black henna" because it could be used in combination with henna to dye hair black. This gave rise to the belief that there was such a thing as "black henna" which could dye skin black. Indigo will not dye skin black. Pictures of indigenous people with black body art (either alkalized henna or from some other source) also fed the belief that there was such a thing as "black henna."
In the 1990s, henna artists in Africa, India, Bali, the Arabian Peninsula and the West began to experiment with para-phenylenediamine (PPD) based black hair dye, applying it as a thick paste as they would apply henna, in an effort to find something that would quickly make jet black temporary body art. PPD can cause severe allergic reactions, with blistering, intense itching, permanent scarring, and permanent chemical sensitivities. Estimates of allergic reactions range between 3% and 15%. Henna does not cause these injuries. "Black henna" made with PPD can cause lifelong sensitization to coal tar derivatives. "Black henna" made with gasoline, kerosene, lighter fluid, paint thinner, and benzene has been linked to adult leukemia.
The most frequent serious health consequence of having a "black henna temporary tattoo" is sensitization to hair dye and related chemicals. If a person has had a "black henna tattoo", and later dyes their hair with chemical hair dye, the allergic reaction may be life threatening and require hospitalization. Because of the epidemic of para-phenylenediamine allergic reactions, chemical hair dye products now post warnings on the labels: "Temporary 'black henna' tattoos may increase your risk of allergy. Do not colour your hair if: ... – you have experienced a reaction to a temporary 'black henna' tattoo in the past."
Para-phenylenediamine is illegal for use on skin in western countries, though enforcement is difficult. Physicians have urged governments to legislate against "black henna" because of the frequency and severity of injuries, especially to children. To assist prosecution of vendors, government agencies encourage citizens to report injuries and illegal use of "PPD black henna". When used in hair dye, the PPD amount must be below 6%, and application instructions warn that the dye not touch the scalp and the dye must be quickly rinsed away. "Black henna" pastes have PPD percentages from 10% to 80%, and are left on the skin for half an hour.
Para-phenylenediamine "black henna" use is widespread, particularly in tourist areas. Because the blistering reaction appears 3 to 12 days after the application, most tourists have left and do not return to show how much damage the artist has done. This permits the artists to continue injuring others, unaware they are causing severe injuries. The high profit margins of "black henna" and the demand for body art that emulates "tribal tattoos" further encourage artists to deny the dangers.
It is not difficult to recognize and avoid para-phenylenediamine "black henna":
if a paste stains torso skin black in less than ½ hour, it has PPD in it.
if the paste is mixed with peroxide, or if peroxide is wiped over the design to bring out the color, it has PPD in it.
Anyone who has an itching and blistering reaction to a black body stain should go to a doctor, and report that they have had an application of para-phenylenediamine to their skin.
PPD sensitivity is lifelong. A person who has become sensitized through "black henna tattoos" may have future allergic reactions to perfumes, printer ink, chemical hair dyes, textile dye, photographic developer, sunscreen and some medications. A person who has had a "black henna tattoo" should consult their physician about health consequences of para-phenylenediamine sensitization
|Posted on October 8, 2012 at 11:15 PM||comments ()|
Henna has been used as a cosmetic hair dye for 6,000 years. In Ancient Egypt,(Cleopatra) was known to have used it. It was commonly used for many centuries in areas of India, the Middle East, and Africa.
In Europe, henna was popular among women connected to the aesthetic movement and the Pre-Raphaelite artists of England in the 1800s. The fashion for Orientalism led young women with a bohemian inclination to begin tinting their hair with henna. Dante Gabriel Rosetti's wife and muse, Elizabeth Siddal, had naturally bright red hair. Contrary to the cultural tradition in Britain that considered red hair unattractive, the Pre-Raphaelites fetishized red hair. Siddal was portrayed by Rosetti in many paintings that emphasized her flowing red hair.The other Pre-Raphaelites, including Frederic Leighton, Evelyn de Morgan, Anthony Frederick Augustus Sandys, and French painters such as Gaston Bussière (painter) and the Impressionists further popularized the association of henna-dyed hair and young bohemian women.
Opera singer Adelina Patti is sometimes credited with popularizing the use of henna in Europe in the late 1800s. Parisian courtesan Cora Pearl was often referred to as La Lune Rousse (the red moon) for dying her hair red. In her memoirs, she relates an incident when she dyed her pet dog's fur to match her own hair. By the 1950s, Lucille Ball popularized "henna rinse" as her character, Lucy Ricardo, called it on the television show I Love Lucy. It gained popularity among young people in the 1960s through growing interest in Eastern cultures.
Muslims also use henna as a dye for their hair and for the beards of males—following the tradition of their prophet Muhammad, who used to dye his beard with henna. It's considered a "sunnah" and akin to something fortunate/good. In one narration by him, he encouraged Muslim women to dye their nails with henna so their hands can be distinguished as feminine & from the hands of a male. Hence you will see this tradition greatly in the Middle East and Africa where women apply henna to their finger and toe nails, as well as their hands
Commercially packaged henna, intended for use as a cosmetic hair dye, is available in many countries, and is now popular in India, as well as the Middle East, Europe, Australia, Canada and the United States. The colour that results from dying with henna can fall into a broad spectrum, from auburn, to orange, to deep burgundy, chestnut brown or deep blue-black. To achieve a colour that is more brown or black, the user must use indigo hair dye as well as henna. The henna is applied first, to coat the hair. Once dry, the indigo is used. The following factors determine the hair colour that results from using henna:
user's original hair colour
freshness of the henna
region of origin of the henna
amount of time the henna is left on the hair to process
whether it remains wet on the hair, or is allowed to dry
the amount of heat retained on the head during the dying process
In this form, it is generally mixed with herbs and perfumes during manufacturing to give it a pleasant fragrance. It is prepared for use much the same way that it is prepared for body art: it is usually sold in block form, and is used in the quantity required for the desired shade of red, brown or black. This will vary according to the user's natural hair colour. The henna is grated into a non-metal container (metal may chemically interact with the henna and ruin the dye) such as a glass bowl. Then hot water is added to it, and the mixture is stirred with a non-metal tool such as a spatula. Once dissolved, the henna is spread onto clean, dry hair. The hair should then be covered with disposable plastic wrap to hold in the heat and moisture, which help the dye to activate. Since any henna that drips will dye skin or clothing, many users will then put a dark towel or a shower cap over the plastic. The henna typically requires at least four hours of processing time before it is washed out. Once hair is dyed with henna, the colour will gradually fade, but it will do so slowly
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