Masterclass led by chemist and professor Núria Salan, offering an engaging journey through the history of women pioneers in scientific and technological development. With a narrative full of humor, data, and anecdotes, it highlights the contributions of female figures often forgotten in the STEM fields, emphasizing their role as driving forces of collective progress. The activity aims to make these pioneers visible, challenge persistent gender stereotypes, and advocate for a more inclusive science and technology. Aimed at university students and young professionals, it offers an inspiring experience that blends historical insight with critical reflection.