The combination of sulphuric acid and castor oil saponifies the oil and neutralises the acid. The resulting product is also 100% dispersible in water giving a milky emulsion.
It creates hardly any foam as its function is a bath oil. It has a pH of 6.5.
According to the Cosmetic Ingredient Database (CosIng), the functions of Turkey Red Bath Oil are: Cleansing, Emulsifying, Humectant, Surfactant.
To view more information, visit the CosIng Database here.