To darken its color, it is often the henna
plant-based ink, altered with chemicals that can cause allergies, experts warn.
A "temporary tattoo" not always be erased
with the passage of time. And many times, but fades away, can cause itching,
burning or hypersensitivity.
But many children and adolescents do not know when
they see henna tattoos as a fun and non-permanent way to decorate your skin on
holiday.
The main problem, experts point, the ink is not
always made properly and, therefore, not all the henna is as safe for
application. The paste that colors these tattoos is made of a powder derived
from the henna plant, which in its natural form is safe for contact with the
dermis. However, many formulas prepackaged henna paste, and even craft, can
contain harmful ingredients that trigger allergic reactions.
Because of its natural qualities, pure henna stains
the skin brown and orange tones, but sometimes it offers what is called
"black henna", ie, henna which has been altered with chemicals to
darken the ink and improve anchorage, Clinic dermatologist explains Santa
Maria, Irene Araya.
"Black henna is adulterated henna, which added
para phenylenediamine or PPD, which is a chemical whose use in temporary
tattoos is banned in the European Union, because they are a potent
allergen," says the doctor. PPDs are generally used in inks hair, but
according to the EU regulation, they should not be concentrated in an amount
greater than 2%.
Hypersensitivity reactions which produce
paraphenylenediamine can leave indelible marks in people with very sensitive
skin, such as children. Furthermore, although allergy disappears, this can be
"reactivated" with time in other body areas. Furthermore, it can
appear even done 15 days after the tattoo adds Araya.
The dermatologist Cien Anos Foundation Loubies
Rodrigo said that the main symptoms that can occur are severe swelling,
itching, pain, redness and even blisters. In these cases, the bottom line is to
apply local cold and go to a medical center.
Concentrated coffee.
The doctor also warned that while these tattoos do
not have the same risks as permanent, not using needles, "if they use the
same brushes or applicators others, can also transmit bacterial and viral infections
of the skin surface ".
Juan Carlos Muñoz, henna tattoo artist for over 16
years and founder of temporalestatuajes.com, said that the "black
henna" tattoo there.
"There are people who sell and black henna work
and really is a hoax. It's just another painting, and is artificial, so it is
allergic." Vegetable henna for temporary tattoos is a limited production
that expires quickly.
"What we work really concentrated natural
henna. When concentrated, gives a tone` mentiroso` black, ie, a tone that lasts
three days and then return to natural color, which is dark brown, light brown
and ends in " details the tattooist.
According Loubies, "the use of pure and natural
henna has a very low risk of causing an allergic reaction." But to ensure
this, you need to check what type of henna is being used and, if possible, read
the ingredients of the formula before tattooing, since apart from
phenylenediamines, sometimes these can also contain metal salts.
Caution.
It is recommended that children avoid these tattoos
are made. As adults sensitive or delicate skin. In addition, experts advise
always check the ingredients of the formula used for the tattoo and check that
they do not have PPD.
Another measure to consider is to confirm that the
elements used have not been used by other people and basically not getting the
tattoo near wounds or areas near or recent infections. Moreover, these tattoos
are not recommended for people with diagnosed contact dermatitis, vitiligo or
prone to keloids.
Finally, dermatologists emphasize not to sun
exposure after application of the tattoo, because it can increase the allergic
reaction. And if you start with redness and itching, apply local cold and go to
a hospital.
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