Sophie Daguin was born in Paris, France.
After six years education under Didelot in her hometown Paris, she was employed in the Ballet of the Royal Swedish Opera in Stockholm, where she made a successful debut in La fille mal gardée by Jean Dauberval in 1815.
Until her forties, she was considered one of the greatest dancers in Stockholm, and she is referred to as the primadonna of the Royal Swedish Ballet in the 1830s, alongside Adolfina Fägerstedt, Carolina Granberg and Charlotta Alm.
During this epoch, unmarried women where formally minors who needed a guardian to manage their finances, but the law allowed for unmarried women to apply for legal majority, and Sophie Daguin successfully did so in 1832.
Among her parts where the main part in the ballet Jenny or Engelska inbrottet i Skottland (The English burglary in Scotland), her part in the operas Den lilla slavinnan (The Little Slave) and Fra Diavolo, in Dansvurmen (The Dance Craze) by Selinder, Hemkosten (The Return) by Bournonville, Le Lac des fées by Filippo Taglioni and as the abbess in the famous ballet in the convent scene in Robert av Normandie, and in 1836 she studied the part of Fenella in Den stumma från Portici by Daniel Auber for Johanne Luise Heiberg in Copenhagen.