How to Mix Frankincense Essential Oil with a Carrier Oil (Ratio Guide)? | Drop Counts That Work

For body use, blend up to 5 drops of frankincense essential oil into 10 mL of carrier oil; for the face, use just 2 drops per 10 mL.

A bottle of pure frankincense smells expensive and behaves like it: one extra drop turns a soothing blend into a stinging one. Below are the exact drop counts from the Tisserand Institute and the National Association for Holistic Aromatherapy, plus the mistakes that cause most reactions.

What Ratio Should You Use for Face vs. Body?

The face gets a lighter blend than the body. Tisserand sets facial use at 2 drops per 10 mL of carrier oil (about 1%) and body use at up to 5 drops per 10 mL (about 2.5%).

NAHA’s dilution chart scales the same logic: about 15 drops per U.S. fluid ounce for 2.5%, 20 drops for 3%, and 30 drops for 5%. For sensitive or reaction-prone skin, Tisserand lists 0.2–1% as the working range — start at the bottom.

Jojoba, sweet almond, and sesame oil all work as the base; NAHA names them as standard vegetable oils for dilution. For a base matched to skin type and shelf life, see this comparison of carrier oils for frankincense blends.

How Do You Actually Mix the Blend?

Measure the carrier oil first, add the drops second, and swirl rather than shake — you cannot un-add a drop.

1. Measure the carrier oil into a clean bottle using a graduated cylinder or marked dropper bottle.
2. Add the frankincense drops for your intended use, counting from the table above.
3. Cap and swirl gently for about ten seconds. A slow roll mixes better than a hard shake, which whips air into the oil.
4. Label the bottle with the oil, dilution, and date. Store closed, away from heat and light.

When it’s right, the blend should smell of frankincense but not hit you like the neat bottle does — a soft, resinous note over the carrier’s own scent. Drop size is not standardized, so drop-count recipes are approximations; a calibrated dropper gives a repeatable formula. Keep label tape and amber glass on hand before you start mixing.

What Goes Wrong Most Often?

Neat application is the top mistake. Tisserand states frankincense is for external use only and should never touch skin undiluted, and NAHA warns that undiluted essential oils can irritate or sensitize. “Natural” does not mean non-irritating.

Second is using a body ratio on the face — facial skin is thinner and reacts faster, hence the 2-drops-per-10-mL ceiling. Third is applying any blend to broken, inflamed, or diseased skin, which NAHA calls potentially dangerous.

Bathwater is the fourth trap. Vegetable oil does not disperse in water, so oil added straight to the tub leaves a slippery film and uneven exposure. Tisserand’s bath formula disperses 4–6 drops in 20 mL of blending oil first (about three baths), added just before you get in and swirled through. Don’t guess a bigger batch — measure it.

Age is the fifth. Tisserand advises against frankincense for children under 3. NAHA lists pediatric ranges of roughly 0.5–2.5% depending on age and condition, but a child’s blend should be checked against current professional guidance rather than scaled down from an adult recipe. Pregnant and nursing people, older adults, and anyone with a medical condition should treat the adult numbers as a starting point, not a clearance.

Last, know what’s in the bottle. Frankincense oil can come from different Boswellia species, including B. carterii, B. frereana, and B. serrata; the label should say which. Patch-test any new blend on a small patch of inner forearm and wait a day. Stop if you see a rash, burning, or irritation. A carrier oil lowers the concentration but does not make frankincense safe for everyone.