Myrrh vs Frankincense: The Classic Pair Compared

Myrrh and frankincense are both dried tree resins tapped from shrubby trees in the family Burseraceae that grow in the arid parts of the Arabian Peninsula and the Horn of Africa, but they come from different genera and smell distinctly different. Frankincense, from Boswellia trees, is pale amber to nearly white and smells fresh, resinous and citrus-pine-like, driven by monoterpenes such as α-pinene and limonene. Myrrh, from Commiphora myrrha, is darker, reddish-brown and smells warmer, bitterer and more medicinal, shaped by furanosesquiterpenes. Both have been burned as incense and used in perfumery, embalming and medicine for at least four thousand years, and both appear together in the biblical account of the Magi’s gifts. Chemically and botanically they are unrelated apart from family; their pairing is a matter of trade history and complementary scent, not shared origin.

What does frankincense smell like?

Fresh, high-grade frankincense tears, particularly the Hojari grade from Boswellia sacra harvested in southern Oman, smell resinous and slightly citrusy, with a cool, almost coniferous top note. That character comes largely from monoterpenes: α-pinene and limonene give the lemon-pine brightness, while α-thujene and other monoterpene hydrocarbons contribute a green, slightly peppery edge. Underneath the volatile top notes sits a drier, waxy, faintly sweet base contributed by boswellic acids, the pentacyclic triterpene acids that also account for much of frankincense’s historical reputation in traditional medicine. Different Boswellia species shift the balance: B. sacra tends toward citrus-and-pine clarity, B. carterii is rounder and slightly balsamic, and B. papyrifera from Ethiopia and Sudan can lean greener and more herbaceous. A fuller species-by-species breakdown is available in the field guide to Boswellia species.

What does myrrh smell like?

Myrrh’s smell is harder to pin to a single family of compounds, which is part of why it reads as more complex and less immediately “clean” than frankincense. The characteristic bitter, smoky, faintly medicinal note comes from furanosesquiterpenes including curzerene, furanoeudesma-1,3-diene and lindestrene, compounds not found in frankincense at meaningful levels. These give myrrh its dark, root-like, almost anise-adjacent facet, sometimes described as balsamic-medicinal rather than fresh. A softer, sweeter relative, opoponax (sweet myrrh, from Commiphora guidottii and related species), shares some of this chemistry but is less bitter and more overtly balsamic, which is why perfumers often reach for it instead of true myrrh when they want warmth without the sharper edge.

Botany: Boswellia vs Commiphora

Both genera are trees or shrubs adapted to dry, rocky terrain, and both exude resin from wounds in the bark as a defense response, hardening on contact with air into the tears sold as incense. Frankincense trees belong to Boswellia; the main commercial species are Boswellia sacra (Oman, Yemen), Boswellia carterii and Boswellia frereana (Somalia), and Boswellia papyrifera and Boswellia serrata (Sudan, Ethiopia, India). Myrrh comes almost entirely from Commiphora myrrha, native to Somalia, Ethiopia and parts of the Arabian Peninsula, with related Commiphora species supplying opoponax and bdellium-type resins. See the frankincense and myrrh entries in the atlas for species maps and regional detail, and the origin notes for Somalia and Oman for the specific trade regions.

Chemistry: why they smell so different

The scent gap between the two resins traces directly to their essential oil composition. Frankincense oil is dominated by monoterpenes, small, volatile molecules that evaporate quickly and read as bright and diffusive; this is why frankincense smoke is often described as “clean” and why it lifts fast when burned. Myrrh oil is dominated by sesquiterpenes, larger and less volatile molecules that evaporate more slowly and sit lower, which is why myrrh reads as darker and more persistent, both on charcoal and in a perfume base. Neither resin depends much on the sweet balsamic esters and acids that define styrax-type balsams; for comparison, that separate chemistry is covered in the article on benzoin chemistry, which shares almost no compounds with either myrrh or frankincense despite superficial olfactory overlap in blends.

History: paired since antiquity

Frankincense and myrrh entered trade together along the same overland and maritime routes from southern Arabia and the Horn of Africa, and they were burned together in Egyptian, Mesopotamian, Greek and Roman temple ritual well before either reached northern Europe. Egyptian embalmers used myrrh for its preservative, antimicrobial resin content, while frankincense was burned in large quantities as temple incense; the compound incense kyphi combined both alongside other resins and honeyed fruit. Their pairing became fixed in later Christian tradition through the nativity account, and both remained standard church incense components for centuries, discussed further in the general guide to natural resins.

Myrrh and frankincense at a glance

Burning myrrh and frankincense together

On charcoal, frankincense tears soften and release their oil almost immediately, producing a sharp initial lift, while myrrh lumps need a little more heat to melt and smoke evenly, releasing their darker, slower notes over a longer burn. Placing small pieces of both on the same coal, or alternating them, produces the layered effect long associated with church and temple incense: a bright opening from the frankincense settling into myrrh’s deeper base. Practical notes on coal choice, timing and ventilation are covered in how to burn resin incense and in the comparison of charcoal vs electric incense burners, which matters more for myrrh than for frankincense since myrrh scorches more readily on overheated charcoal.

Buying and storing both resins

Grading conventions differ between the two. Frankincense is generally sorted by tear size, color and purity, with terms like Hojari referring to origin and season rather than a fixed international standard. Myrrh grading is less formalized, with “wild-harvested” and general commercial grades being the main distinctions in the retail market. Both resins darken and lose top-note volatility with age and heat exposure, so cool, dark, airtight storage matters for keeping their characteristic scents intact, following the same principles outlined in how to store resins.

• myrrh
• frankincense
• resins
• incense
• boswellia