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With the arrival of good weather, it is common for beaches, fairs, markets and other outdoor events to offer temporary tattoos by applying Henna directly to the skin. But, they are not as harmless as they seem.
The substance that is usually used for this type of temporary tattoo is called paraphenylenediamine (PPD), which is often added to black henna to make it darker and to speed up drying time. Some black henna has a concentration of up to 30% PPD.
Its use is allowed for use in hair dyes, but not for products that come into contact with the skin such as temporary tattoos.
When this compound is used in skinDepending on the intensity of the allergic reaction, it can cause blisters, painful burns on the skin and can even lead to scar formation, keloids or depigmentation about the tattoo.
It can also cause lifelong sensitivity, and, in the event of a subsequent exposure at any time in your life, develop a picture of allergic contact dermatitis, which may require urgent medical attention and even hospitalization.
The allergic reaction It can start 3 to 10 days after the person gets the temporary tattoo.
The natural henna is obtained from the leaves and flowers of a bush, and that when mixed with other products a greenish-brown paste that in contact with the skin a chestnut red temporary tattoo, which will last on the skin for a few 3 or 4 days.
To make this type of temporary tattoos have a glossy black color, it is more attractive and durable than natural henna, black henna has been used. The black henna is obtained by adding to the natural henna other colorants, such as p-phenylenediamine or PPD, which is prohibited for direct use on the skin, as it can trigger serious allergic skin reactions.
If the color of this pasta is darker, most likely colorants have been added to it and should be avoided. With the black henna the color of the tattoo is black, and can last longer One week.