The Chemistry of Sesquiterpene Rich Essential Oils and Its Benefits As previously discussed, Essential Oils are composed of many chemical components. These components make up chemical families. Today we will discuss sesquiterpene rich oils. Sesquiterpenes have a 15-carbon chain as opposed to monoterpenes which have a 10 carbon chain. Sesquiterpene oils tend to have heavier molecules and also a thicker viscosity. Vetiver is a great example of this. Chemical families such as monoterpenes may possess similar therapeutic properties but the same cannot be assumed with sesquiterpene rich oils. You cannot assume that all the oils in this family will possess the same therapeutic properties. Essential oils that comprise mostly of sesquiterpenes may have antiseptic, analgesic and anti-inflammatory properties to name a few. Listed below are the names of a few major sesquiterpene rich essential oils. Unlike monoterpene rich oils these oils take longer to oxidize. It is still recommended that you purchase in