Honestly, there’s no one “mildest” soap, since even the gentlest, most free-of-everything body wash can still inflame someone’s skin while working perfectly well for other people.  But Dr. Friedler says that many of the common brands with sensitive skin-specific products are dermatology-focused—in other words, they’re designed to be gentle enough for nearly everyone to use. This includes Eucerin, CeraVe, Aveeno, Dove, and Aquaphor, just to name a few (and, if you’ll notice, many of those brands made our list!). In general, if a soap is free of sulfates, synthetic fragrances, harsh exfoliants, and irritating chemicals, it can probably be categorized as “mild” enough for sensitive skin.