BODY MASS Leave-in Conditioning Treatment by Kevin Murphy is designed to enhance and fortify hair. The advanced formula features a unique complex that usually focuses on volumizing and lengthening eyelashes, but here, it targets hair instead. The result is immediate—hair appears fuller and denser while benefiting its overall condition. Moreover, it provides nourishment from the root level, helping to reduce hair fall. To use, simply apply to damp hair at the roots and scalp without rinsing.