The healthiest bar soaps are typically organic and contain natural ingredients like plant-based oils, essential oils, and botanicals. Look for soaps free of synthetic fragrances, dyes, sulfates, and parabens to minimize potential skin irritation and exposure to harmful chemicals.

While truly 'chemical-free' is impossible (everything is made of chemicals!), bar soaps labeled as organic or natural often minimize synthetic chemicals. Scrutinize ingredient lists and avoid soaps with artificial fragrances, preservatives, and harsh detergents like SLS/SLES.

Traditionally, the Amish often make their own soap using simple ingredients like lye, water, and animal fats or vegetable oils. Modern Amish may also purchase commercially made, natural soaps with minimal additives.

Several brands prioritize natural ingredients, but 'most natural' is subjective. Research brands like Dr. Bronner's, Shea Moisture, and Tom's of Maine, carefully reviewing their ingredient lists to ensure they align with your definition of natural and organic.