In 2008, she graduated from INSA Rouen University in Normandy, where she studied organic chemistry and engineering. Following graduation, she secured an internship in Dior's perfume department, spending seven months developing production processes. In the autumn of 2008, Guiguer joined Givaudan as a junior evaluator. After three years of working on fragrances for cosmetic lines, she began her formal training as a perfumer. In 2016, she earned the title of junior perfumer and started working on projects for major global brands.