She made her feature film debut in the 2013 drama film
Refrain alongside
Afgansyah Reza and
Maudy Ayunda before achieving mainstream success with the
action film Street Society and the
biographical film Merry Riana: Mimpi Sejuta Dolar as well as the sitcom
Tetangga Masa Gitu in 2014. Before this, in 2005, she starred in a
Wall's ice cream commercial. She appeared opposite Boy William in the historical drama
Di Balik 98 in 2015 and another biographical drama
Rudy Habibie in 2016. Both roles garnered Islan consecutive nominations at the 2015 and 2016
Citra Awards in the
Best Actress category, which she lost to
Tara Basro (
A Copy of My Mind) and Cut Mini (
Athirah) respectively. For her role in the 2016 biopic film
3 Srikandi, Islan won the
2016 Maya Award for
Best Supporting Actress, the
2017 Indonesian Movie Award for Favorite Supporting Actress, as well as a Best Actress Award at the 2016 Bandung Film Festival. Also in 2016, she appeared as a doctor in
the Mo Brothers' action film
Headshot. She was cast in the lead role of Alfie for
Timo Tjahjanto's solo directorial debut
May the Devil Take You, which was released in 2018 to critical and commercial success. She reprised the role in the 2020 sequel
May the Devil Take You Too and is set to appear in the third installment
May the Devil Take You: Dajjal. Islan has appeared in multiple commercials for brands such as
L'Oreal,
Garnier,
Tokopedia,
Pizza Hut,
Oppo,
Magnum,
Rexona, and
Matahari Department Store. ==Personal life==