Total Fatty Matter (TFM) is an important factor in determining the quality of soaps. It refers to the amount of fatty material, mostly fatty acid, separated after splitting with a mineral or hydrochloric acid. The higher the TFM value, the more hydrating and less harmful the soap is to the skin. Toilet soaps are categorized into three grades based on their TFM content: Grade 1 soaps have a minimum of 76% TFM, Grade 2 soaps have a minimum of 70% TFM, and Grade 3 soaps have a minimum of 60% TFM. It is mandatory for toilet soaps to specify their TFM content as part of their ingredient list. However, soaps with high TFM quantity can sometimes dry up the skin if their pH levels are too high. Therefore, it is important to consider the TFM content based on your skin type
. Here are the TFM values of some commercial soaps in India, according to a study: Lux - 60.00%
