GET TO KNOW YOUR OILS
Arina / Iary
Psiadia altissima
Chemotype: beta-pinene dominant profile
- PLANT PART
- leaves
- EXTRACTION
- steam distillation
- AROMA NOTE
- top
LEARN AS YOU COMPARE
What’s inside this oil?
Constituents are the natural chemicals that give an oil its character. See the main ones, learn what they do, and explore differences between batches.
Meet the main constituents, then select one to see what makes it interesting.
FOLLOW YOUR SENSES
Aroma & character
A closer look at this oil's scent, strength, and staying power.
- Aroma intensity
- 50 / 100
- Note layer
- top
If you like this scent, explore
A LITTLE CARE GOES A LONG WAY
Using it thoughtfully
Read the full safety context before bringing this oil into your routine.
- Cited dermal maximum · leave-on
- No restriction cited
- Phototoxicity
- Not flagged in this profile
- Oxidation risk
- medium
A cited maximum is a limit, not a suggested dilution. Missing restrictions do not establish safety.
No phototoxic furocoumarin concern was located for the steam-distilled leaf oil in this pass.
Contraindications & cautions
- moderateUndiluted Arina/Iary essential oil causes skin irritation and may cause an allergic skin reaction per the commercial safety data sheet; use in appropriate dilution.
- majorOral ingestion/aspiration route is contraindicated: the MSDS states the oil may be fatal if swallowed and enters the airways.
Explore measured chemistry from supplier batches
A supplier report describes a particular sample. Open this workspace to investigate measured constituents and their original documents.
THE SCIENCE BEHIND THE SCENT
Inside the oil
An oil's character comes from its natural chemical composition. Explore each constituent to understand the connections.
About this composition
The strongest open composition evidence for Psiadia altissima now comes from three compatible public sources: a 2024 peer-reviewed Madagascar leaf-oil study, Oshadhi's public SDS batch documentation for Iary, and Florihana's public technical sheet. Together they support a beta-pinene-dominant leaf oil with limonene, beta-ocimene, alpha-pinene, and smaller sesquiterpene markers. This record uses the peer-reviewed paper for exact typical values where published, and uses the supplier sheets as upper-bound batch disclosures rather than forcing narrower maxima that would conflict with the peer-reviewed typical values. For oil-level safety, the only public source located in this pass that directly addresses topical cautions for Arina/Iary states that no cautions are known, so the archive treats the oil as unrestricted rather than inventing a numeric cap.
| Constituent | Typical amount | Reported range | Chemical family | Source |
|---|---|---|---|---|
| beta-pinene | 44.9% | 38–46% | monoterpene hydrocarbon | View sourceChemical composition of essential oils from six Psiadia species endemic to Madagascar Island; Oshadhi Iary SDS https://www.researchgate.net/publication/377163716_Chemical_composition_of_essential_oils_from_six_Psiadia_species_endemic_to_Madagascar_Island (Table 2 / section 3.2.1: beta-pinene 44.9%); https://oshadhi.co.uk/media/files/1585_MSDS_EN.pdf (beta-pinene 38-46%) |
| limonene | 10.4% | 0.1–10.4% | monoterpene hydrocarbon | View sourceChemical composition of essential oils from six Psiadia species endemic to Madagascar Island; Oshadhi Iary SDS; Florihana Iary technical sheet https://www.researchgate.net/publication/377163716_Chemical_composition_of_essential_oils_from_six_Psiadia_species_endemic_to_Madagascar_Island (Table 2 / section 3.2.1: limonene 10.4%); https://oshadhi.co.uk/media/files/1585_MSDS_EN.pdf (limonene 0.1-8%); https://www.florihana.com/fr/module/axproductattachments/export?file=FLE021FT.pdf&reference=FLE021&type=Fiche+technique (limonene <= 6.0%) |
| cis-beta-ocimene | 7.3% | — | monoterpene hydrocarbon | View sourceChemical composition of essential oils from six Psiadia species endemic to Madagascar Island; Oshadhi Iary SDS https://www.researchgate.net/publication/377163716_Chemical_composition_of_essential_oils_from_six_Psiadia_species_endemic_to_Madagascar_Island (Table 2 / section 3.2.1: (Z)-beta-ocimene 7.3%); https://oshadhi.co.uk/media/files/1585_MSDS_EN.pdf (beta-ocimene <3%) |
| alpha-pinene | 4.5% | 3–7% | monoterpene hydrocarbon | View sourceChemical composition of essential oils from six Psiadia species endemic to Madagascar Island; Oshadhi Iary SDS https://www.researchgate.net/publication/377163716_Chemical_composition_of_essential_oils_from_six_Psiadia_species_endemic_to_Madagascar_Island (Table 2 / section 3.2.1: alpha-pinene 4.5%); https://oshadhi.co.uk/media/files/1585_MSDS_EN.pdf (alpha-pinene 3-7%) |
| beta-caryophyllene | 1.7% | 1–3% | sesquiterpene hydrocarbon | View sourceChemical composition of essential oils from six Psiadia species endemic to Madagascar Island; Oshadhi Iary SDS https://www.researchgate.net/publication/377163716_Chemical_composition_of_essential_oils_from_six_Psiadia_species_endemic_to_Madagascar_Island (section 3.2.1: beta-caryophyllene 1.7%); https://oshadhi.co.uk/media/files/1585_MSDS_EN.pdf (beta-caryophyllene 1-3%) |
| alpha-humulene | 1.3% | — | sesquiterpene hydrocarbon | View sourceChemical composition of essential oils from six Psiadia species endemic to Madagascar Island; Oshadhi Iary SDS https://www.researchgate.net/publication/377163716_Chemical_composition_of_essential_oils_from_six_Psiadia_species_endemic_to_Madagascar_Island (section 3.2.1: alpha-humulene 1.3%); https://oshadhi.co.uk/media/files/1585_MSDS_EN.pdf (alpha-humulene <2%) |
| myrcene | 2.5% | — | monoterpene hydrocarbon | View sourceOshadhi Iary SDS https://oshadhi.co.uk/media/files/1585_MSDS_EN.pdf (myrcene <5%; midpoint of cited upper-bound disclosure, no distinct typical value published) |
| p-cymene | 0.4% | — | monoterpene hydrocarbon | View sourceChemical composition of essential oils from six Psiadia species endemic to Madagascar Island; Oshadhi Iary SDS https://www.researchgate.net/publication/377163716_Chemical_composition_of_essential_oils_from_six_Psiadia_species_endemic_to_Madagascar_Island (Table 2: p-cymene 0.4%); https://oshadhi.co.uk/media/files/1585_MSDS_EN.pdf (p-cymene <2%) |
| sabinene | 0.4% | 0.4–0.4% | monoterpene hydrocarbon | View sourceChemical composition of essential oils from six Psiadia species endemic to Madagascar Island; Oshadhi Iary SDS https://www.researchgate.net/publication/377163716_Chemical_composition_of_essential_oils_from_six_Psiadia_species_endemic_to_Madagascar_Island (Table 2 / section 3.2.1: sabinene 0.4%); https://oshadhi.co.uk/media/files/1585_MSDS_EN.pdf (sabinene <5%) |
Profile source: Chemical composition of essential oils from six Psiadia species endemic to Madagascar Island; Oshadhi Iary SDS; Florihana Iary technical sheet; Oshadhi Iary product page; Aroma characteristics from Etsy listing · https://www.researchgate.net/publication/377163716_Chemical_composition_of_essential_oils_from_six_Psiadia_species_endemic_to_Madagascar_Island ; https://oshadhi.co.uk/media/files/1585_MSDS_EN.pdf ; https://www.florihana.com/fr/module/axproductattachments/export?file=FLE021FT.pdf&reference=FLE021&type=Fiche+technique ; https://oshadhi.co.uk/iary-essential-oil/ ; https://www.etsy.com/il-en/listing/606415515/arina-iary-essential-oil-psiadia
What we're still learning · 4 data gaps
Good decisions start with knowing what is — and isn't — in the evidence.
- The `max_dermal_pct` value of 100 follows the archive's unrestricted-oil convention, based on the public safety text in Helen Nagle-Smith's Iary chapter stating 'None known' under cautions and safety rather than publishing a numeric leave-on cap.
- The public SDS provides commercial concentration bands for several constituents, but not a full peer-reviewed min-max table for every listed constituent in the exact same batch, so some minima remain null where only a '<x%' disclosure was published.
- Odor intensity 50 remains a normalization of the public categorical strength 'Medium' from live vendor records rather than a native published 0-100 measurement.
- No source-backed volatility-rate or tenacity-hours values were located.