The parameters necessary to obtain the mark have been selected considering some of the requirements that may affect consumers negatively and especially children.

Parameters include some substances subject to legislative regulation
and others which, although not subject to limits specifically stated in
the legislation of the EU, are substances which can be found in textiles and deemed to pose potential health hazard.

An example of these substances are the carcinogenic and allergenic colorants which are a subject of interest for the part of national authorities, but which are not currently subject to EU legislation which limits their use in clothing products. The commitment undertaken by the company in attaching the eco safe mark to its products is to attest that the articles of clothing intended for children are monitored in order to prevent the harmful effects that may be connected with the presence of these substances.

For phthalates, eco safe defines certain limitations on all articles of clothing intended for children. Specific phthalates are in fact banned at EU level, but only in childcare articles and toys. With the eco safe mark, the company undertakes testing to determine the presence of dangerous phthalates in all clothing products (containing plastic coated parts) intended for children and to ascertain a greater number of substances compared to those explicitly prohibited in toys and articles for early childhood care.

Formaldehyde is a substance that has been under consideration for some time due to the harmful effects it may cause when present in articles of clothing, especially those intended for small children and which come into contact with the skin. However, there is no EU legislation as yet which explicitly limits the presence of this substance in articles of clothing. Some states of the EU have national legislations that limit the presence of this substance. The eco safe mark defines certain specific requirements in relation to the presence of formaldehyde in textiles and leather.

The eco safe mark sets limitations to both heavy metals subject to EU Community legislation and heavy metals for which the European Commission has not set specific limits. The heavy metals included in the requirement shall not exceed the acceptability levels of the eco safe mark, defined as concentration or migration maximum values.

Children's clothing may contain cords or drawstring which may have functional or decorative purposes. In children's clothing cords and drawstring may be of potential hazard and, if not constructed following specific details, may cause serious injury.

Children's clothing may present small parts such as buttons, sliders, rivets and eyelets. These small parts present a potential hazard if they are not well fixed to the garment.