Ask for "frankincense" and you could receive any of several quite different materials. The word covers resin from a number of Boswellia species, each with its own aroma, appearance, and best use — and within each species, resin is sorted into grades that can vary in price several times over. For a buyer, understanding both axes — species and grade — is what turns a vague purchase into a precise one.
This guide explains the main types of frankincense by species, then how grading works, so you can specify exactly what your product needs.
Frankincense is a family, not a single material
All frankincense comes from trees of the genus Boswellia, part of the Burseraceae family. These hardy trees grow in dry, rocky regions across the Arabian Peninsula, the Horn of Africa, and India. Harvesters tap the bark, and the resin that exudes and hardens into tears is collected, dried, and sorted. Because the species differ genetically and grow in different environments, their resins carry distinct chemistry and scent.
The main Boswellia species
Boswellia sacra
Strongly associated with Oman and also found in Yemen and parts of Somalia, Boswellia sacra is among the most celebrated frankincense types. Its finer grades are prized for a clean, fresh, citrus-bright aroma. The pale, high-grade Omani material is often the benchmark people picture when they think of premium frankincense.
Boswellia carterii
Harvested in the Horn of Africa, Boswellia carterii is one of the most widely traded frankincense types and a mainstay of perfumery and incense. It is very closely related to sacra — so closely that the two have been the subject of long botanical debate — but the trade generally treats them as distinct, and typical grades have a recognisably warm, balsamic, slightly citrus character.
Boswellia frereana
Also from the Horn of Africa, Boswellia frereana is sometimes called the "king" of frankincense in regional trade and is traditionally chewed like a natural gum because it does not soften and stick the way other types can. Its aroma is fresh and pine-like. Notably, its resin chemistry differs from species such as serrata, so it is chosen for aroma and tradition rather than for the compounds sought in supplement extracts.
Boswellia papyrifera
Native to Ethiopia, Eritrea, and Sudan, Boswellia papyrifera is a major commercial source, especially for essential oil and incense. Its oil has a distinctive aroma that many associate with the classic scent of burning church incense, which makes it valuable to fragrance and incense manufacturers.
Boswellia serrata
Found in India, Boswellia serrata is widely known as the source of standardised extracts used in the dietary supplement sector, where its boswellic acid content is of particular interest. As a resin it is also used in incense. Buyers sourcing for extract applications will usually be focused on this species.
How frankincense grading works
Within any species, resin is sorted into grades. There is no single global standard, so the exact terms vary by supplier and region, but grading consistently rests on a handful of observable qualities.
Colour and clarity
Paler, more translucent tears generally grade highest. Premium material can look silvery, greenish, or milky white with a clean, glassy break, while darker or cloudier resin sits lower in the range.
Size and form
Large, whole, hand-sorted tears command a premium, especially for retail products where appearance sells. Smaller tears and broken fragments are perfectly serviceable for milling and distillation at a lower price point.
Cleanliness
How free the resin is from bark, sand, and dust matters in every grade. Cleaner material means less waste and more predictable results in production.
Some origins have their own well-known grade names — Omani frankincense, for example, is often described with tiers from everyday grades up to premium "Hojari" classifications. Treat these as a helpful shorthand, but always confirm what a given grade means in concrete terms of colour, size, and cleanliness.
Choosing the right type and grade
The key principle is to match the material to the job:
- Luxury loose resin or retail tears: favour pale, large, clean high grades of an aromatic species such as sacra or carterii.
- Incense manufacturing: mid grades and species such as papyrifera or carterii offer the right aroma at a workable cost.
- Essential oil distillation: choose the species whose oil matches your target scent; appearance grade matters less.
- Extract and supplement applications: focus on serrata and the relevant standardised specifications.
If you are still mapping out origins and quality markers, our buyer's guide to sourcing wholesale frankincense is a useful companion piece.
For trade buyers: unsure which species and grade fit your formulation? Talk to our team about samples, and we will help you match the right frankincense type to your product and volume.