Tamanu Oil: the Green Oil of the Pacific Calophyllum
Dark green, thick, with a resinous scent: tamanu oil is unlike any other vegetable oil. Extracted from the kernels of the calophyllum, a coastal tree, it is used in concentrations of 5 to 30% in a more fluid base. Here's how to recognize it, measure it, and use it.
The essentials to remember about tamanu
- It is the oil from the kernels of the Calophyllum inophyllum, a coastal tree found on the islands of the Pacific Ocean. On a label, it is written as Calophyllum Inophyllum Seed Oil.
- It should be diluted from 5 to 30% in a more fluid oil. The reference concentration for facial use is 10%, meaning 1 mL of tamanu oil for 10 mL of synergy.
- Three signs of a virgin oil: a dark green color, a distinct resinous scent, and visible thickening after 10 minutes in the refrigerator.
- Its dense texture makes it a nourishing and comforting oil, not a finishing oil: it is best used in the evening, on dry skin or on rough areas of the body.
Tamanu in pictures
Four views of the same oil: the dark green in a bottle, the nut from which it is derived, how it catches the light, and its color in a thin layer.
The oil's identity card
Where this oil comes from
Calophyllum is a large tree that grows by the water's edge, on sand and coral, on the islands of the Pacific and Indian Oceans. It is found in Tahiti, in the atolls of the Tuamotu—Rangiroa, Fakarava—in the Marquesas, but also from Madagascar to Vietnam. Among coastal plants, it is one of the few that can withstand sea spray, salt, and strong winds—which explains its place in Polynesian cosmetic traditions, alongside monoi, vanilla, and black pearl.
Its fruit resembles a small, green ball two to three centimeters in size. The fruit falls to the ground, is collected, cracked open, and the nuts are then sun-dried. The kernel—the "nut"—is never pressed fresh: it must first air-dry for several weeks, often four to eight depending on the producer. It is this slow drying process that causes the oil to appear in the kernel; a fresh kernel yields almost no oil. The oil is then extracted by cold pressing, without solvents, and simply filtered: this is what is called a virgin oil.
Yield remains low—around a few liters of oil for a hundred kilograms of nuts—and the process is long. This is the primary reason for the price of a finished tamanu product, significantly higher than that of a common vegetable oil, whether at an herbalist's shop or online. The second reason lies in its color and its resinous base, which tolerate no approximations in formulation.
What tamanu brings to the skin
Nutrition
Rich in fatty acids—around 40% oleic acid and 30% linoleic acid depending on the batch—it nourishes dry and uncomfortable skin.
Comfort film
Its rich texture leaves a flexible film on the skin's surface, reducing the feeling of tightness after exposure to cold, wind, or a sea bath.
Body suppleness
Used in massage on elbows, knees, and heels, it improves comfort and the smoothed appearance of rough areas.
Sensory signature
Its dark green color and resinous scent come from molecules specific to Calophyllum, including calophyllolide: these define virgin oil.
Tamanu, Monoi, Rosehip, Prickly Pear: What sets them apart
Four oils often mentioned together, four very different behaviors in the bottle and on the skin.
| Oil | INCI Name | Appearance at 20 °C | Scent | Typical Dilution | Feel at 5 minutes |
|---|---|---|---|---|---|
| Tamanu | Calophyllum Inophyllum Seed Oil | Thick to solidified, dark green | Resinous, green, pronounced | 5 to 30 % | Persistent oily film |
| Monoi de Tahiti | Cocos Nucifera Oil + Gardenia Tahitensis Flower Extract | Solid below 24 °C, ivory white | Floral (tiare), sweet | Pure | Melting, slippery |
| Rosehip | Rosa Moschata Seed Oil | Liquid, orange | Vegetal, subtle | Pure | Dry, fast absorption |
| Prickly Pear | Opuntia Ficus-Indica Seed Oil | Liquid, light yellow-green | Almost neutral | Pure | Very dry, immediate absorption |
Solidification temperatures are indicative: they vary with batch and refining degree. Monoi de Tahiti has benefited from a French appellation of origin since 1992: coconut oil macerated with Tiare flowers (Gardenia tahitensis).
Four common confusions
In Polynesian traditions, tamanu is credited with many virtues. In cosmetics, what we retain can be summed up in a few words: a rich, nourishing oil, whose benefits relate to skin comfort and appearance. The rest belongs to ethnobotany, not a product sheet. Four misunderstandings often arise.
- It's not a Monoi. Monoi is a perfumed macerate made from copra oil; tamanu is an oil pressed from an entirely different plant, with no added fragrance. They can be found together in the same formula, but never replace each other.
- It's not an essential oil. Essential oils are volatile, highly concentrated extracts, measured in drops and subject to their own precautions. Here, we are talking about a fatty substance obtained by pressing, which is diluted in another fatty substance.
- "Natural" does not mean "organic." The second term refers to a cultivation method certified by a control body. On the label, look for the logo and the organism's number rather than just the word; and remember that a label provides information on cultivation, not on batch freshness.
- It's not a finishing oil. Its sensory properties—density, color, scent—make it an accent ingredient, to be applied under a cream or lotion, never as the last layer before going out.
The three bottle tests, in two minutes
Tamanu is expensive, so it's sometimes cut or refined. These three steps can be done at home, without equipment.
The color
Dark green, almost brown in the bottle, distinct green in a thin layer on the back of the hand. A pale yellow and clear oil has been refined or diluted with a neutral oil.
The scent
Frankly resinous, green, slightly spicy. An almost odorless oil is not a virgin oil: the scent is the price to pay for the integrity of the pressing.
The cold
Place the bottle in the refrigerator for 10 minutes, at around 5 °C. A virgin oil will thicken and become cloudy; a very diluted oil will remain perfectly fluid. Thirty seconds in the palm of your hand will make it liquid again.
The INCI list
"Calophyllum Inophyllum Seed Oil" should appear alone, or at the top of the list. A pressing date, a tinted glass bottle, and a "virgin" mention complete the picture; an organic label provides information on cultivation, not freshness.
Dosing correctly: the dilution table
Tamanu is used diluted. Beyond 30%, the scent and texture take precedence over the treatment.
| Usage | % of Tamanu | For 10 mL | For 30 mL | Recommended Base |
|---|---|---|---|---|
| Discovery, sensitive face | 5 % | 0.5 mL | 1.5 mL | Prickly pear seed oil |
| Face, evening | 10 % | 1 mL | 3 mL | Prickly pear or rosehip |
| Body, targeted areas | 20 % | 2 mL | 6 mL | Jojoba or sweet almond oil |
| Foot balm, elbows, knees | 30 % | 3 mL | 9 mL | Melted shea butter |
| Hair ends | 10 % | 1 mL | 3 mL | Coconut oil or Monoi |
For hair, apply the 10% synergy to lengths and ends 20 minutes before shampooing. On the body, a dab of cream or body lotion applied over it extends comfort without feeling heavy. And if your skin is looking more for soothing than nutrition, a light 5% synergy combined with centella will be more appropriate than a high percentage of tamanu.
The 21-day protocol
A simple way to introduce such a characteristic oil without stressing the skin — and to judge its effects.
Tolerance test
2 drops of the 10% synergy in the crease of the elbow, then 48 hours of observation.
Face, in the evening
Gentle cleansing, floral water, then 2 drops at 10% before cream.
Body, targeted areas
3 drops at 20% and 60 seconds of circular massage on rough areas.
The review
A photo at the same time and under the same light as on Day 1, then maintenance every other evening.
Precautions and proper use
- Combination or oily skin: the texture is dense, so stick to 5% and reserve application for the body rather than the face.
- In case of known allergy to tree nuts, consult a health professional before use.
- The 48-hour patch test in the elbow crease applies to any new oil, including this one.
- Essential oils fall under different uses and their own precautions: diluting a vegetable oil in another vegetable oil is not the same thing.
- Storage: tinted glass bottle, between 15 and 20 °C, away from light, 12 months after opening.
Our interpretation, from the Pacific to the Maghreb
Two coastlines, two survival plants: tamanu on island sands, prickly pear on rocky plateaus. In the workshop, we use them in two opposing roles. Prickly pear is the base: fluid, almost odorless, it disappears in seconds. Tamanu is the accent: two drops are enough to change the nature of a synergy.
Our formulation guideline is 10/90 for the face and 20/80 for the body: one part tamanu to nine parts prickly pear oil for the face, one part to four for the body. Beyond that, the green color and resinous scent dominate the finished product. Below 5%, the oil doesn't add much to the texture.
Discover our comfort skincareNOPAL LIFE skincare in synergy
What frames the application: gentle cleansing before, a cream to seal after.
The three combinations that work
With rosehip
A dry oil from the Andes to compensate for the density of the Pacific: 10% tamanu in rosehip creates a non-sticky evening synergy.
Discover rosehipWith prickly pear
Our in-house guideline: 10% for the face, 20% for the body. The almost neutral base allows tamanu to express itself without the scent dominating.
Discover prickly pearWith Centella asiatica
For skin primarily seeking comfort: a light 5% synergy, alternating with a Centella asiatica treatment every other evening.
Discover Centella asiaticaNOPAL LIFE Skin Intelligence™
5% or 20%? Face or body? The skin diagnostic answers in 11 questions and 3 minutes, then suggests your routine.
Start my free diagnostic
Frequently Asked Questions
At what percentage should tamanu oil be diluted?
Between 5 and 30% depending on usage. The reference setting for the face is 10%, i.e., 1 mL of tamanu for 10 mL of synergy. It increases to 20% for the body and up to 30% in a balm for feet, elbows, and knees.
Can it be used pure?
On very small areas and occasionally, yes — a few drops on a rough heel, for example. For regular use, dilution is preferable: at 100%, the texture and resinous scent become difficult to bear, and the bottle empties very quickly.
Why is my bottle solid?
This is normal: below approximately 20°C, virgin tamanu oil thickens and becomes cloudy. Thirty seconds in the palm of your hand are enough to re-liquefy it. This is even the best indicator of quality: 10 minutes in the refrigerator, at around 5°C, will thicken a virgin oil, whereas a highly diluted oil remains perfectly fluid.
Tamanu or Monoi de Tahiti: what's the difference?
Two different products, often confused because they come from the same islands. Monoi de Tahiti is coconut oil macerated with tiare flowers, protected by a French designation of origin since 1992, and is used pure. Tamanu, on the other hand, is an unperfumed vegetable oil, extracted from calophyllum nuts, and is diluted from 5 to 30%.
Does its smell eventually disappear?
It doesn't disappear, it recedes. At 10%, the resinous scent fades into the background behind that of the carrier oil, then blends into the scent of the cream applied over it. The most neutral oils, such as prickly pear, are the best allies for tempering it.
Is it suitable for hair?
Yes, on dry lengths and ends: a 10% synergy applied 20 minutes before shampooing, never on the roots. Two shampoos may sometimes be necessary, as the texture is dense.
Read in the Skin Guide
Rosehip oil: complete guide
The dry oil from the Andes, ideal support for a 10% synergy.
Read the articleCentella asiatica: complete guide
The plant associated with tamanu for skin seeking comfort.
Read the articleSources: European Commission, CosIng database — INCI nomenclature "Calophyllum Inophyllum Seed Oil". Designation of origin "Monoï de Tahiti", French decree of 1992, Official Journal of the French Republic.
This page of the Ingredient Reference presents a cosmetic use. The information provided does not constitute medical advice.
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