organski spojevi u bojama za tetoviranje....

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The vast majority of tattoo pigments are derived from metals, which makes them a potential source for developing a skin reaction. Some pigments do have non-metallic options for those who have concerns or a past history of allergic reactions to these compounds.

Red is the color most commonly associated with reactions within a tattoo. Mercury is the base metal in red tattoo dye, and may be known by the names mercury sulphide, cinnabar, vermillion and red cinnabar.

Reactions within the tattoo may be eczematous or granulomatous. These reactions are often seen several years from the time the tattoo is placed and may be associated with exposure to cross reactants. These include such chemicals as thimerasol (a widely used preservative), mercurochrome and some vaccines that also contain thimerasol. For those with known thimerasol allergies who are set upon having red within their tattoos, there are a variety of non-metallic pigments that lend a red color to the skin such as carmine (derived from dried insect carcasses) and scarlet lake, sandalwood and brazilwood which are organic red pigments.

Another option, cadmium red is related to the metal family and may have potential reactivity and cadmium sulfide may be a byproduct within some red dyes which may result in a phototoxic swelling of the area when exposed to light.

Black is most commonly achieved from carbon. Sensitivity to carbon is rare. Other sources of black tattoo color may be found in black ink and logwood. Neither of these are metal derivatives, however, the black waterproof ink contains phenol solution in which charcoal particles are suspended and may be the source of other reactions.

Yellow is achieved from the use of Cadmium and is a common cause of reactions within tattoos. Not only may cadmium produce local or generalized eczematous reactions; it has also been associated with phototoxic reactions when exposed to light. Cadmium sulfide is the most common material used in yellow tattoo ink.

Blue dyes are derived from a variety of Cobalt salts and is notorious for deep granulomas as well as causing localized hypersensitivity reactions and a few reported cases of uveitis (an inflammation of the eyes). Light blue colors are also derived from cobalt and may again cause granulomas. Watch for the names cobalt blue and cobaltous aluminate that are terms for this blue pigment.

Green comes from Chromium and is a common cause of eczematous reactions both within the tattoo, as well as generalized eczematous reactions on the body. Chromium oxide has a variety of names including Chrome green, Casalic green and Guignet’s green. These variations while mixed in different suspensions may all cause such significant and long term itching and other eczematous reactions that complete removal of the tattoo may be required. The allergic reaction may arise several years after the tattoo has been placed. Other shades of green such as emerald green are formed from another type of chromium salt called chromium sesquioxide (aka veridan) or copper salt derivatives.

Purple is derived from the metal Manganese which may cause the formation of tattoo granulomas.

Violet again comes from Manganese and may also result in granulomas.

Brown dye may be formed via the use of either Venetian Red which is derived from Ferric Oxide or from Cadmium salts, associated with phototoxic swelling upon exposure to sunlight.

White tattoos are achieved usually from titanium or zinc oxide or from the use of lead carbonates. These may have the potential to contain metallic derivatives.