What are the benefits of turmeric soap? Turmeric soap treats many skin problems, relying on the benefits of turmeric for the skin and its cleansing and antioxidant properties. Benefits and uses of turmeric soap: 1- Suitable for oily skin prone to acne. 2- Treats acne, its effects, and blackheads. 3- Works to clean the skin due to its cleansing properties. 4- Used in treating psoriasis and eczema. 5- Treats melasma and skin pigmentation, due to turmeric's antioxidant effect.