Dr. Bronner's All One Pure Castile Hemp Tea Tree Bar Soap. Woodsy and medicinal & our Tea Tree Pure-Castile Bar Soap contains pure tea tree oil & good for acne-prone skin and dandruff! Dr. Bronner's Bar Soap is made with certified fair-trade ingredients and organic hemp oil for a soft smooth lather that won't dry your skin. 100% biodegradable in a 100% post-consumer recycled wrapper.