Delapenha has spent the last two years since founding Strands perfecting the process of testing hair and then producing personalized formulations. He says the testing and production process had to be optimized so that the product is not too expensive for a mass audience, and for the hair-collection process to be easy for consumers to understand and carry out. After years of scientific research, along with two MIT-educated engineers to leverage technology, develop proprietary algorithms, and analyze data, Function of Beauty developed a hair-care quiz to create products that are shaking up the beauty space x2014; so much so that some brands have followed in their footsteps. The quiz covers your hair type, hair structure, scalp moisture, hair goals, best mascara to buy at ulta color, and fragrance preferences to create products you wonx2019;t be able to stop using.