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Is Bergamot Essential Oil Phototoxic? Uses, Blends and Safety
Bergamot is the citrus behind classic eau de cologne and Earl Grey tea: bright, a little floral, never sugary. Whole bergamot oil is famous for burning skin in the sun; ours is FCF, the version made without that risk. Here is the difference, and how to enjoy it.
Bergamot is an unusual-looking fruit: round, green and bumpy, about the size of a small orange. It is grown for its peel, and for the oil in that peel, which scents classic colognes and flavors Earl Grey tea.
The oil smells fresh and sweet-tart, with a peppery, herbal heart and a soft floral edge. Whole bergamot oil also has a famous catch, shared to some degree by many citrus oils: left on skin in sunlight, it can burn. Ours is FCF bergamot, made without the compounds that cause it.
The short version
- Bergamot essential oil is cold-pressed from the peel of the bergamot orange. Our label lists it as Citrus Aurantium Bergamia Fruit Oil, from small, green, nearly ripe Italian fruit.
- Whole cold-pressed bergamot is phototoxic: on skin exposed to sun or a tanning bed, it can cause burns and dark patches.
- Tisserand & Young’s maximum is 0.4% on skin that will see the sun, about 2 drops in 30 ml (1 oz) of carrier oil. Above that, keep the skin covered or indoors for at least 12 hours.
- Ours is FCF (furocoumarin-free), as the front of the bottle says. FCF bergamot isn’t considered phototoxic, so the sun limits for whole bergamot don’t apply to it.
- In a diffuser or room spray there is no sun issue at all.
What Bergamot Essential Oil Is
Bergamot is a small citrus tree, a cross of bitter orange and lemon. Most of the world’s crop, about 90% by most estimates, grows in Calabria, at the toe of southern Italy.
To make cold-pressed oil, the peel is pressed mechanically, without heat, and the oil separated from the juice. Ours is cold-pressed from the peel of bergamots picked by hand and carefully cleaned in the south of Italy, taken while still small, green and nearly ripe for a rich green oil. No additives, no fillers.
Why the label says Citrus Aurantium Bergamia
Cosmetic labels use standardized ingredient names, and bergamot’s is Citrus Aurantium Bergamia, a nod to its bitter-orange parent. Botanists usually write it Citrus bergamia. Don’t confuse it with bee balm, a garden herb also nicknamed bergamot: different plant, different smell.
Is Bergamot Essential Oil Phototoxic?
Yes, unless it is bergapten-free. Whole bergamot oil, pressed straight from the peel, is one of the best-known phototoxic essential oils. It contains small amounts of furocoumarins, mainly bergapten, compounds that react with UVA light on the skin. A typical bergamot oil holds only around 0.3% bergapten, but that is plenty.
Put bergamot on skin, step into the sun or a tanning bed, and the skin can redden, blister and burn. It doesn’t hurt at first, which is what makes it tricky: the reaction appears hours later and can keep building for one to three days. The patchy brown marks that follow can last for weeks or months.
Tisserand’s 0.4% limit and the 12-hour rule
In Essential Oil Safety, the standard reference on the subject, Tisserand and Young set a maximum of 0.4% for bergamot oil on skin that will be exposed to sunlight. IFRA, which sets the fragrance industry’s safety standards, uses the same 0.4% for leave-on products. That is very little:
- In 30 ml (1 oz) of carrier oil: 2 drops, about 0.33%. A third drop takes you over.
- In a 10 ml roller bottle: not even one drop. A single drop in 10 ml is 0.5%, so bergamot doesn’t belong in a daytime roller.
If you use more than 0.4%, the Tisserand Institute’s advice is simple: keep that skin out of sunlight and UV, including tanning beds, for at least 12 hours, by covering it completely or staying indoors. A stronger body oil is fine on skin that stays covered for those 12 hours. A bergamot perfume on bare wrists before a walk is not.
- Wash-off products are different. In soap, shower gel or a bath, the oil is rinsed away, and the risk is considered negligible.
- Phototoxic oils add up. Half the bergamot limit plus half the cold-pressed lime limit is already a full dose (more in our lime guide).
- Before sunbathing or a tanning bed, skip phototoxic oils on skin completely.
Bergapten-free (FCF) bergamot
Because bergamot is so loved in perfume, producers also make a version with the furocoumarins taken out, sold as bergamot FCF (furocoumarin-free) or bergapten-free, sometimes spelled bergaptene-free. The oil is re-processed, usually by careful distillation, and FCF bergamot is considered non-phototoxic.
What about ours?
Ours is FCF. It is cold-pressed from the peel, and the front of our bottle says FCF Free: it’s bergamot with the furocoumarins removed, the version that isn’t considered phototoxic. So the 0.4% limit and the 12-hour rule above are for whole bergamot oil, not ours. Ours still gets diluted for skin like any essential oil, and it still needs to be kept fresh, because FCF bergamot reacts with air like other citrus oils. If you ever buy a bergamot that doesn’t say FCF or bergapten-free, follow the whole-oil limits.
What It Smells Like, and What It Blends With
Bergamot is citrus with a grown-up side: a fresh top note over a sweet, herbal, peppery heart, with a gentle floral edge. It is crisper and less sugary than orange, and softer and rounder than lemon.
It shines with florals and resins. A few diffuser blends to try, in drops for a standard water diffuser:
- Evening calm: 3 drops bergamot, 2 drops Lavender
- Garden citrus: 3 drops bergamot, 2 drops Geranium Rose
- Bright and grounded: 3 drops bergamot, 2 drops Frankincense (more in our frankincense guide)
- Classic cologne: 3 drops bergamot, 1 drop Lemon, 1 drop lavender
How to Use Bergamot Essential Oil
In a diffuser
Start with 3 to 5 drops in the water reservoir. Phototoxicity is about oil left on skin, so diffusing doesn’t raise it. Diffuse for 30 to 60 minutes at a time, in a room with some airflow.
In a room spray or linen mist
Mix in a 100 ml (about 3.4 oz) glass spray bottle:
- About 90 ml distilled water
- About 10 ml witch hazel or high-proof vodka (it helps the oil disperse)
- 12 drops bergamot and 8 drops lavender
Shake well before every spray. Mist into the air and over linens, not onto people or pets, and test fabric on a hidden spot first.
As a cologne-style body oil
For a fresh, cologne-style body oil, stir 4 drops bergamot and 2 drops lavender into 30 ml (1 oz) of jojoba, about 1% in all. Ours is FCF, so it doesn’t need the whole-bergamot sun limit. With a bergamot that isn’t FCF, keep it to 2 drops in 30 ml for skin that will see the sun. Patch test on your inner arm first, and keep it away from your eyes.
What about the health claims you see online?
Search “bergamot benefits” and you will find claims about stress, skin and even cholesterol. The cholesterol research is on extracts of the fruit and juice taken as supplements, not on the essential oil. On skin, bergamot is a scent ingredient, and whole bergamot is a sun-sensitive one. In the U.S., an oil sold to treat a health problem is regulated as a drug; ours is sold for its scent, and we don’t make health claims for it. If you are managing a health condition, talk with your doctor.
Using It Safely
- Sun: ours is FCF, so it isn’t considered phototoxic. Whole bergamot is: 0.4% or less on skin that will see the sun, or 12 hours covered up.
- Dilute for skin, every time, and patch test first.
- Keep it fresh. Like other citrus oils, bergamot contains limonene, which reacts with air, and oxidized citrus oil is more likely to irritate skin or cause an allergy. Keep the cap tight and count from the day you open it: about 6 to 12 months at room temperature, or 1 to 2 years in the fridge.
- Don’t swallow it, and keep it away from the eyes. Wash your hands after handling it.
- Children: keep the bottle out of reach and bergamot off kids’ skin, and check with your pediatrician before using any essential oil on or near babies and toddlers.
- Pets: the ASPCA lists the bergamot orange as toxic to dogs, cats and horses and names its essential oils as one reason. Diffuse only briefly around cats, in a ventilated room they can leave, and never put oils on a pet’s skin or fur.
- Pregnancy and medical care: check with your doctor if you are pregnant, nursing, taking medication or under a doctor’s care, especially if a medicine already makes your skin sun-sensitive.
How to Choose a Good Bergamot Oil
- The plant: Citrus bergamia or Citrus Aurantium Bergamia, by name. Not “bergamot fragrance”.
- Whole or FCF: a good label tells you, because it decides how you use the oil on skin. Ours says FCF Free. When in doubt, follow the whole-oil limits.
- Dark glass: light and air break oils down. A clear plastic bottle is a red flag.
- Independent standards: our oils are Grade A, Certified ToxicFree® and Leaping Bunny certified. Here is what ToxicFree® certification means.
The Bottom Line
Bergamot is the most refined of the citrus oils, at home in a diffuser, a linen mist or a homemade cologne. Whole bergamot asks for one rule on skin: 0.4% or less where the sun will reach, or 12 hours covered up. Ours is FCF, made without the compounds that cause sun reactions, so just dilute it like any oil. Keep the bottle fresh, and it will give you Italian citrus without the sunburn.
FAQ: Bergamot Essential Oil
Is bergamot essential oil phototoxic?
Whole, cold-pressed bergamot oil is, because of its bergapten. Bergapten-free (FCF) bergamot is considered non-phototoxic. Ours is FCF, as the bottle says.
What is Tisserand’s maximum dermal level for bergamot?
0.4% on skin that will be exposed to sunlight, and IFRA uses the same figure. That’s about 2 drops in 30 ml (1 oz) of carrier oil.
How long should I stay out of the sun after using bergamot oil?
If you’ve used more than 0.4% on skin, keep that skin out of sunlight and UV, including tanning beds, for at least 12 hours.
What does FCF mean on bergamot oil?
Furocoumarin-free. The oil has been re-processed to remove bergapten and related compounds, and it is considered non-phototoxic. Our bergamot is FCF.
Is bergamot oil safe to diffuse around pets?
Be careful, especially with cats. Diffuse only briefly, in a ventilated room your pet can leave, and never apply oils to a pet.
How long does bergamot essential oil last?
From opening, about 6 to 12 months at room temperature, or 1 to 2 years tightly capped in the fridge. If it smells flat or “off”, replace it.
Sources
- Tisserand R, Young R. Essential Oil Safety: A Guide for Health Care Professionals, 2nd edition. Churchill Livingstone / Elsevier, 2014.
- Tisserand Institute — Phototoxicity: essential oils, sun and safety.
- IFRA Standards — Bergamot oil expressed; Citrus oils and other furocoumarins containing essential oils (Amendment 49, 2020).
- Tisserand R. “Lemon on the rocks: keep your essential oils cool.” roberttisserand.com, 2013.
- ASPCA Animal Poison Control Center — Bergamot Orange (toxic and non-toxic plants list).
- U.S. Food & Drug Administration — Aromatherapy.
Product spotlight
Every Chaé essential oil is 100% pure, Grade A, Certified ToxicFree® and Leaping Bunny certified, with the plant named on the label. Start with bergamot, then add a floral or a resin.
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