GET TO KNOW YOUR OILS
Cedarwood Port Orford Oregon
Chamaecyparis lawsoniana
Chemotype: delta-cadinene / alpha-terpineol type
- PLANT PART
- heartwood
- EXTRACTION
- steam distillation
- AROMA NOTE
- base
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
- 65 / 100
- Note layer
- base
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
- 3%
- Phototoxicity
- Not flagged in this profile
- Oxidation risk
- low
A cited maximum is a limit, not a suggested dilution. Missing restrictions do not establish safety.
No furocoumarin-related phototoxic restriction was identified in the reviewed public sources for Port Orford cedarwood heartwood oil.
Contraindications & cautions
- minorSupplier MSDS for this specific Port Orford cedarwood item explicitly instructs not to ingest the oil ("DO NOT EAT!"); as an undiluted essential oil it is for external, diluted topical or diffused use only, and prolonged undiluted skin contact should be avoided.
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
This Oregon Port Orford cedarwood profile is based on a live GC/MS report for steam-distilled heartwood oil. It is compositionally distinct from Cedrus cedarwoods and from Texas/Virginian juniper cedarwoods, showing a cadinene-cadinol and oxygenated monoterpene profile with alpha-terpineol, borneol, and fenchol instead of cedrol-thujopsene dominance. All twelve quantified peaks from the Lot No. 13193 GC-MS component table (Shay and Company) are now represented; the table itself sums to approximately 73.6% of the oil, so remaining mass reflects unlisted/unnamed minor peaks not resolved in the public report.
| Constituent | Typical amount | Reported range | Chemical family | Source |
|---|---|---|---|---|
| delta-cadinene | 18.24% | 18.24–18.24% | sesquiterpene hydrocarbon | View sourcePort Orford Cedarwood Oil Chemical Composition (GC-MS) Lot No. 13193 https://shayandcompany.com/product/port-orford-cedarwood-essential-oil-usa-grown/?attachment_id=77865&download_file=6wcs1llz7mm09 (component table; DELTA CADINENE 18.24%) |
| alpha-terpineol | 9.91% | 9.91–9.91% | monoterpene alcohol | View sourcePort Orford Cedarwood Oil Chemical Composition (GC-MS) Lot No. 13193 https://shayandcompany.com/product/port-orford-cedarwood-essential-oil-usa-grown/?attachment_id=77865&download_file=6wcs1llz7mm09 (component table; ALPHA TERPINEOL 9.91%) |
| gamma-cadinene | 10.06% | 10.06–10.06% | sesquiterpene hydrocarbon | View sourcePort Orford Cedarwood Oil Chemical Composition (GC-MS) Lot No. 13193 https://shayandcompany.com/product/port-orford-cedarwood-essential-oil-usa-grown/?attachment_id=77865&download_file=6wcs1llz7mm09 (component table; GAMMA CADINENE 10.06%) |
| alpha-murolene | 7.9% | 7.9–7.9% | sesquiterpene hydrocarbon | View sourcePort Orford Cedarwood Oil Chemical Composition (GC-MS) Lot No. 13193 https://shayandcompany.com/product/port-orford-cedarwood-essential-oil-usa-grown/?attachment_id=77865&download_file=6wcs1llz7mm09 (component table; ALPHA MUREOLENE 7.90%) |
| tau-cadinol | 5.88% | 5.88–5.88% | sesquiterpene alcohol | View sourcePort Orford Cedarwood Oil Chemical Composition (GC-MS) Lot No. 13193 https://shayandcompany.com/product/port-orford-cedarwood-essential-oil-usa-grown/?attachment_id=77865&download_file=6wcs1llz7mm09 (component table; TAU CADINOL 5.88%) |
| alpha-cadinol | 4.48% | 4.48–4.48% | sesquiterpene alcohol | View sourcePort Orford Cedarwood Oil Chemical Composition (GC-MS) Lot No. 13193 https://shayandcompany.com/product/port-orford-cedarwood-essential-oil-usa-grown/?attachment_id=77865&download_file=6wcs1llz7mm09 (component table; ALPHA CADINOL 4.48%) |
| alpha-pinene | 2.94% | 2.94–2.94% | monoterpene hydrocarbon | View sourcePort Orford Cedarwood Oil Chemical Composition (GC-MS) Lot No. 13193 https://shayandcompany.com/product/port-orford-cedarwood-essential-oil-usa-grown/?attachment_id=77865&download_file=6wcs1llz7mm09 (component table; ALPHA-PINENE 2.94%) |
| limonene | 1.28% | 1.28–1.28% | monoterpene hydrocarbon | View sourcePort Orford Cedarwood Oil Chemical Composition (GC-MS) Lot No. 13193 https://shayandcompany.com/product/port-orford-cedarwood-essential-oil-usa-grown/?attachment_id=77865&download_file=6wcs1llz7mm09 (component table; LIMONENE 1.28%) |
| fenchol | 2.51% | 2.51–2.51% | monoterpene alcohol | View sourcePort Orford Cedarwood Oil Chemical Composition (GC-MS) Lot No. 13193 https://shayandcompany.com/product/port-orford-cedarwood-essential-oil-usa-grown/?attachment_id=77865&download_file=6wcs1llz7mm09 (component table; FENCHOL 2.51%) |
| camphor | 1.74% | 1.74–1.74% | ketone | View sourcePort Orford Cedarwood Oil Chemical Composition (GC-MS) Lot No. 13193 https://shayandcompany.com/product/port-orford-cedarwood-essential-oil-usa-grown/?attachment_id=77865&download_file=6wcs1llz7mm09 (component table; CAMPHOR 1.74%) |
| endo-borneol | 3.45% | 3.45–3.45% | monoterpene alcohol | View sourcePort Orford Cedarwood Oil Chemical Composition (GC-MS) Lot No. 13193 https://shayandcompany.com/product/port-orford-cedarwood-essential-oil-usa-grown/?attachment_id=77865&download_file=6wcs1llz7mm09 (component table; ENDO-BORNEOL 3.45%) |
| gamma-murolene | 5.16% | 5.16–5.16% | sesquiterpene hydrocarbon | View sourcePort Orford Cedarwood Oil Chemical Composition (GC-MS) Lot No. 13193 https://shayandcompany.com/product/port-orford-cedarwood-essential-oil-usa-grown/?attachment_id=77865&download_file=6wcs1llz7mm09 (component table; GAMMA-MUROLENE 5.16%) |
Profile source: Port Orford Cedarwood Oil Chemical Composition (GC-MS) Lot No. 13193; Vizu Dilution Information; The Good Scents Company Port Orford Cedarwood entry; Shay and Company Port Orford Cedarwood product page · https://shayandcompany.com/product/port-orford-cedarwood-essential-oil-usa-grown/?attachment_id=77865&download_file=6wcs1llz7mm09 ; https://www.vizu.co/dilution-information ; https://www.thegoodscentscompany.com/data/es1068431.html ; https://shayandcompany.com/product/port-orford-cedarwood-essential-oil-usa-grown/
A TRADITION OF BOTANICAL CURIOSITY
Traditional & reported uses
These uses reflect the profile's reported traditions and literature. They are not established treatment recommendations.
- traditionally used in aromatherapy for grounding, forest-like calming blends
- reported to support clear, easy breathing when diffused
- used in perfumery for its fresh, citrus-tinged woody facet distinct from other cedarwoods
- traditionally associated with a refreshing, revitalizing atmosphere in blends
- used as a base note to add lift and brightness to woody accords
For aromatherapy and wellness use only — not medical advice. Effect statements are traditional/reported associations, not treatment claims. The Synergy Rating scores blend craft, harmony and safety, not medical efficacy. Read the safety framework.
What we're still learning · 2 data gaps
Good decisions start with knowing what is — and isn't — in the evidence.
- Missing public source type: a directly viewable odor-strength reference that expresses Port Orford cedarwood on a native numeric 0-100 intensity scale; the current odor_intensity is an archive normalization from supplier language describing the oil as stronger than Virginian cedarwood and from sweet-woody/fresh aromatic descriptors.
- CAS numbers for gamma-murolene, alpha-murolene, gamma-cadinene, and tau-cadinol were not directly confirmed in a public chemistry reference during this pass.