Decorative tattoos is a popular way of expression in young people. Permanent Make Up (PMU), is gaining ground every day for facial characteristics correction. Colorants used for PMU applications dot not always follow the regula- tions of the European legislation and may contain harmful ingredients for the health. European countries are trying to create a common regulation followed by each country member to protect public health.
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Andreou et al. (2024) studied this question.
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