Because we are attempting to de-emphasize the percentage of the sulfur and salicylic acid. This bar soap is for cleansing skin. As a soap, ingredients are listed in descending order by ingredient weight. The "regulatory" definition of "soap" is different from the way in which people commonly use the word. The bulk of the nonvolatile matter in the product consists of an alkali salt of fatty acids and the product's detergent properties are due to the alkali-fatty acid compounds. This product is labeled, sold, and represented solely as soap.
Why does the packaging on the 10% Sulfur & 3% Salicylic Acid soap not list the percentages?
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