A video has been circulating on social media claiming that a company named Senomyx, which specializes in food flavoring, uses kidney cells from aborted fetuses in their products. This company collaborates with several other brands like Pepsi and Nestlé. However, there have also been reports denying this claim, stating that the company sometimes uses these cells in laboratories for taste testing but does not include them in the food itself. Can I consider the products of brands that work with such companies to be permissible and pure?