- (Hà Nội) IPA(key): [s̪aː˨˩ ˀɓɜwŋ͡m˧˧]
- (Huế) IPA(key): [s̪aː˧˧ ˀɓɜwŋ͡m˧˧]
- (Hồ Chí Minh City) IPA(key): [s̪aː˨˩ ˀɓɜwŋ͡m˧˥]
In Southern regions, xà bông usually colloquially refers to laundry detergent instead of soap. If you go to a general store asking for a xà bông, they would give you laundry powder. You should be more specific by asking for a "xà bông tắm" ("soap for bathing") if you want a real soap, and for a "xà bông giặt" ("soap for laundry") if you want detergent.