{"id":1220,"date":"2023-01-26T23:05:11","date_gmt":"2023-01-26T23:05:11","guid":{"rendered":"http:\/\/agderma.de\/?page_id=1220"},"modified":"2024-03-01T07:18:57","modified_gmt":"2024-03-01T07:18:57","slug":"problem-caused-by-sun-protection-creams","status":"publish","type":"page","link":"https:\/\/agderma.de\/en\/themen\/problem-durch-sonnenschutzcremes\/","title":{"rendered":"Problem due to sunscreens"},"content":{"rendered":"
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Problem due to sunscreens<\/h1>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t
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This text is by no means an invitation to permanently refrain from active sun protection, but deals with some of the ingredients of sunscreens. Sunscreens fulfil an important function by protecting the skin barrier from UV light and thus preventing skin cancer.<\/em><\/p>

Basically, a distinction is made between two active principles in sun creams:<\/p>

1. sun creams with mineral or physical UV filters
<\/strong>contain substances such as titanium dioxide (TiO2) and zinc oxide (ZnO). These stick to the skin when applied and prevent UV radiation from reaching the skin through diffuse reflection. Meanwhile, these are often added as nanoparticles (nano titanium dioxide and nano zinc oxide) to avoid a whitening effect. The Biocides Ordinance<\/a>\u00a0defines nanomaterials as \"particles (...) in which at least 50 percent of the particles in the number size distribution have one or more dimensions in the range from 1 nm to 100 nm.\"<\/p>

Zinc oxide<\/strong><\/a>
A\u00a0Publication<\/a>\u00a0from 2018 could not find any skin permeability for hydrophobic silicone-coated and uncoated zinc oxide nanoparticles in a size of 65 and 77 nm.\u00a0
A\u00a0Study<\/a> concluded in 2010, however, that the uptake of nanoparticles through the skin is influenced by the particle size and that this also depends on the health status of the skin. Zinc oxide is listed in the ECHA database as a very toxicological for aquatic life forms<\/a>\u00a0listed.<\/p>

Titanium dioxide<\/a><\/strong>\u00a0
The\u00a0Scientific Committee on Consumer Safety (SCCS)<\/a>\u00a0notes that the use of pigmented Titanium dioxide<\/a> in topicals, due to the current data situation and the possible classification of titanium dioxide as a category 2 carcinogen according to the CLP Regulation (Inhalation<\/a>), is not safe for general consumers if inhaled. In the database of\u00a0ECHA will titanium dioxide<\/a> listed as a possible carcinogenic substance.<\/p>

There has been a labelling obligation for nanoparticles in cosmetics in the EU since 11 July 2013. <\/em><\/p>

Update titanium dioxide 7 May 2021 Titanium dioxide is also used as a whitening agent in foods (sweets, toothpaste, mozzarella, etc.) and medicines. According to a Publication of the Federal Institute for Risk Assessment (BfR) of 6 May 2021<\/a>\u00a0its use as a food additive is not considered safe, as there is an urgent suspicion that titanium dioxide is mutagenic. In France, titanium dioxide has been banned in food since 1 January 2020. \u00a0<\/p>

2. sun creams with chemical UV filters<\/strong>
penetrate the skin. They contain absorbing substances that convert the energy of UV radiation into infrared light and emit it again. Some of these chemical UV filters are strongly suspected of being endocrine disruptors. The following substances and groups of substances are currently the focus of attention\u00a0European Commission<\/a>:<\/p>