Tonkin musk, derived from the glandular secretions of the musk deer, particularly those found in the Tonkin region (historically referring to an area in northern Vietnam), is one of the most valued ingredients in traditional perfumery. This musk is renowned for its exceptionally rich, deep aroma. The scent profile of Tonkin musk is complex and multifaceted, characterized by a profound, earthy base note that is intensely animalistic and sensuous. It carries subtle hints of woodiness, juxtaposed with warm, ambery undertones. The fragrance is profoundly persistent, with an enveloping, pervasive warmth that adds depth and longevity to perfumes. This musk is often used in minute quantities to give perfumes a certain "lift" and to enhance other fragrances, due to its powerful fixative properties. The rarity and ethical concerns regarding the sourcing of natural Tonkin musk have led to the creation of synthetic alternatives that attempt to mimic its unique qualities while preserving wildlife.