Every day, 17 million hygiene products are used in German-speaking countries alone. Most of them end up as plastic waste in landfills and are the fifth most common items found on European seashores (European Commission). Therefore, biodegradable and reusable alternatives to single-use hygiene products are needed to significantly reduce marine pollution. Vyld has developed the world's first tampon made from seaweed: the Kelpon. However, production is limited to natural seaweed stocks or farms, the polymer extraction process for tangpon production is resource-intensive and the polymer fibres need to be optimised. Therefore, we want to optimise the extraction of polymers from kelp for the production of sustainable, fair and biodegradable hygiene products. During the project, the sustainability of extraction for kelp production will be improved (e.g. reduction of water and chemical consumption) and scaled up. In addition, various methods for optimising the functional stability of the polymer will be tested (e.g. changing the time of harvest, enzyme-assisted extraction, optimised cultivation conditions).