Etude by Houbigant is a fragrance for women. Etude was launched in 1931. The nose behind this fragrance is Marcel Billot. Etude by Houbigant is a women's fragrance first released in 1931. Created in the early 20th century, it reflected the classical French perfumery style of its time and was appreciated for its pronounced presence and good lasting power on the skin. Although now discontinued, Etude remains of interest to vintage perfume enthusiasts and collectors as part of Houbigant's historical output.