[4] Gerosa lost her relations in rapid succession and was left alone to manage the business; she prayed, used her inheritance to provide charitable works in the area and became active in her local parish.

[1][2] Gerosa organized a women's group with meetings and spiritual retreats and even founded a practical school to teach poor girls of the area domestic work so as to improve their situation in life.

On 21 November 1832 – with Capitanio – she made her profession in the religious name of "Vincenza" in the parish of San Giorgio before the priest Rusticiano Barboglio and Angelo Bosio.

In 2005 there were 5068 religious in a total of 447 houses in nations such as Japan and the United Kingdom; the motherhouse of the order is located at 13 Via Santa Sofia in Milan.

That same pontiff beatified Gerosa and her friend Capitanio in Saint Peter's Basilica on 30 May 1926 while Pope Pius XII went on to canonize the duo on 18 May 1950.