So Sweet by Schiaparelli c1941

So Sweet was originally the name of a perfume presentation for Shocking by Schiaparelli as well as its own fragrance. Both were introduced in 1941.

Si by Schiaparelli c1957

Si by Schiaparelli: launched in 1957. "Si" got its name from the "Valse des Si." dedicated to her by composer Henri Sauguet. "Si" can mean both the musical note B and "it" — it also consists of the first and last letters of Schiaparelli). The perfume is also said to be from Juliette Greco's song "Si".

Soucis de Schiaparelli c1934

Soucis de Schiaparelli: launched in 1934. Souci was meant to be worn during the day.