The present invention provides a composition comprising from about 5% to about 50% of an essential free carboxylic acid, preferably myristic acid, behenic acid or 12-hydroxystearic acid, based on the weight of the soap; From about 15% to about 65% of a water soluble basic anionic and / or nonionic soap hardening adjuvant, preferably sodium cocoyl isethionate or sodium lauroyl acethionate; And about 15% to about 55% of water. The cleaning soap has a very mild acidic pH. The soap at the pH of the formulation may contain little or no soap and may have a shallow penetration value of 0 to 12 mm.
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