The soap with sulfur helps in acne treatment!
Some information get from internet about how it works are as below

Why Sulfur Works & What it’s for Sulfur is gentle but effective. Unlike more drying agents like Benzoyl Peroxide, Sulfur acne spot treatments will not dehydrate skin and leave it further irritated. Instead, it works to remove excess shine, and over time, help heal existing breakouts for a brighter, clearer, and noticeably smoother complexion.