This thesis is focused on the development and characterization of hydrogels containing humic substances with possible use in cosmetic and pharmaceutical industries. This work follows on the bachelor thesis, theoretical and experimental part is based on already acquired knowledge. The aim of this work was to develop a literature review focusing on the potential use humic gels in practice and also to enhance the consistency of other active ingredients. Based on this literature review, the main aim was to prepare model humic hydrogels with selected active ingredients and their characterization by basic methods of material analysis. These basic methods were especially rheology and visual assessment of consistency during the preparation, then the samples were subjected process of drying and swelling. Experimental results showed considerable influences during the preparation and composition of each sample, which then reflected in their structure and consistency. Furthermore, it was found that the suitable composition and combination of ingredients form hydrogels acceptable characteristics for further use in cosmetic or pharmaceutical applications.

The thesis is focused on theoretical principles of demarcation of products with health effects in the EU law and on the reflection of these issues in the application and administrative practice in commercial law. The thesis developed yet been brought judicial interpretation with the scientific interpretation of certain key and decisive problems that separate from each other law-regimes of regulation: medicinal product for human use, foods, cosmetics products, medical devices and biocides. Correct law-regime for a particular product is determinating of the general legal basis in the EU internal market. It is therefore a important problem not only in EU law, but also in EU economic. Thesis results are highly critical of current practice in the local markets of EU member states, especially Czech Republic, and in many instances documented sub-optimal application of this law in general practice.