Austrian Hay

Hierochloe alpina (Sw. ex Willd.) Roem. & Schult.

haywoodysweetbalsamicteaanimalic

PLANT PART: hay / dried aerial material
EXTRACTION: co-extraction of high-altitude hay with cedarwood
AROMA NOTE: mid-base

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What’s inside this oil?

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Aroma & character

A closer look at this oil's scent, strength, and staying power.

haywoodysweetbalsamicteaanimalic

Aroma intensity: 50 / 100

Soft & subtleBold & expressive

Note layer: mid-base

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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: Unknown

A cited maximum is a limit, not a suggested dilution. Missing restrictions do not establish safety.

No source-backed phototoxic furocoumarin warning was located in this pass.

Contraindications & cautions

moderateThe directly retrieved supplier SDS classifies the finished material as Skin Sens. 1 and Asp. Tox. 1, so undiluted dermal exposure and accidental ingestion warrant caution even though no numeric leave-on maximum was published.
majorThe directly retrieved supplier SDS classifies the finished material as Asp. Tox. 1 with hazard statement H304, so ingestion and any use pattern with aspiration risk should be avoided.

Read the complete safety guide

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

11 constituents

An oil's character comes from its natural chemical composition. Explore each constituent to understand the connections.

About this composition

Hermitage sells this material as Austrian hay produced by co-extracting high-altitude hay with cedarwood rather than as a straightforward monograph-style steam-distilled single botanical. Live supplier HTML, product JSON-LD, and the public WordPress product API reviewed on 2026-07-08 describe a sweet sun-dried hay profile with dry woody, balsamic, rooty, animalic, and musty facets and medium longevity; the current public product API record for product 35568 also exposes an empty `acf` payload rather than any machine-readable technical fields. The raw product HTML on 2026-07-08 showed a `data-sheet-btns` block with a single `SDS` button whose inline `onclick` only triggers the alert `You must have purchased this product before you can download the sheet...`, not a readable public PDF link for any IFRA or allergen document. The public media API still exposes only one product-specific PDF: SDS attachment 52524. A direct 2026-07-08 fetch of `wp-json/wp/v2/media?parent=35568&per_page=100` returned exactly three attachments for the product: PDF attachment 52524 `austrian-hay-essential-oil-en-2021_10_11` plus image attachments 47095 `Austrian-Hay-Absolute.jpg` and 35572 `hay-essential-oil.jpg`. That directly retrievable SDS confirms cosmetic/alimentary intended use plus Asp. Tox. 1 and Skin Sens. 1 classification, and its section 3 explicitly says the product contains no hazardous ingredients at or above regulated thresholds, but it does not publish a quantitative composition table, allergen breakdown, IFRA certificate, or dermal-use ceiling. A direct re-check of the live media endpoints on 2026-07-08 confirmed that `wp-json/wp/v2/media?search=Austrian%20Hay&per_page=100` returned exactly two records, namely SDS attachment 52524 plus one image asset, while separate sweeps of `wp-json/wp/v2/media?search=35568&per_page=100` and searches for `Austrian`, `Austrian-Hay`, `Hay Essential`, `Hay Oil`, `Hierochloe`, and `alpina` produced no additional Austrian-Hay-specific PDF beyond attachment 52524. The returned media objects expose `post:35568` / `wp:attached-to` linkage back to the product but still no richer technical file set such as IFRA, allergen, TDS, COA, or GC-MS documents. A same-day live web search for `Austrian Hay Essential Oil IFRA OR SDS OR GC-MS` surfaced the Hermitage product page and the already-known Austrian hay literature references, but no newer public IFRA, GC-MS, or technical sheet for product 35568. A different Hermitage product, `HAY ABSOLUTE SUPER PREMIUM IFRA 51`, was directly retrieved on 2026-07-08 and confirms that public hay paperwork exists at the same supplier, but it applies to another hay product rather than to Austrian Hay Essential Oil product 35568. The cited 1990 Austrian hay-blossom paper is still indexed on the open web, and current search-engine snippets for the DOI PDF endpoint still advertise that more than 40 compounds were identified, but a direct 2026-07-08 fetch of `https://www.tandfonline.com/doi/pdf/10.1080/10412905.1990.9697858` returned `HTTP/2 403` with a Cloudflare challenge page instead of a readable article PDF, and a separate direct 2026-07-08 fetch of the zNaturforsch path `https://www.znaturforsch.com/ab/v45b/45b0723.pdf` returned HTML rather than a readable PDF body. An openly hosted scan at `https://real-aroma.ru/books/Journal%20of%20Essential%20Oil.pdf` was also retrievable on 2026-07-08, but text extraction from that file exposed the 1990 article's table-of-contents entry only and did not yield a transcribable Austrian hay composition table. Those Austrian hay-blossom literature tables therefore could not be transcribed from source documents in this pass. IFRA guidance says the specific quality's own analytical data should be used when available, so adjacent hay documents are not strong enough to proxy quantitative composition or a leave-on maximum for this exact cedarwood co-extract.

Constituent	Typical amount	Reported range	Chemical family	Source
1,8-Cineole	—	—	monoterpene oxide	View source Dr. Duke's Phytochemical and Ethnobotanical Databases chemical list for Hierochloe alpina https://phytochem.nal.usda.gov/chemical-list/6247/982 (reviewed 2026-07-08: row 18CINEOLE is listed for Hierochloe alpina)
beta-Pinene	—	—	monoterpene hydrocarbon	View source Dr. Duke's Phytochemical and Ethnobotanical Databases chemical list for Hierochloe alpina https://phytochem.nal.usda.gov/chemical-list/6247/982 (reviewed 2026-07-08: row BETAPINENE is listed for Hierochloe alpina)
Linalool	—	—	monoterpene alcohol	View source Dr. Duke's Phytochemical and Ethnobotanical Databases chemical list for Hierochloe alpina https://phytochem.nal.usda.gov/chemical-list/6247/982 (lists linalool for Hierochloe alpina and cites Buchbauer et al. 1990)
Linalyl acetate	—	—	monoterpene ester	View source Dr. Duke's Phytochemical and Ethnobotanical Databases chemical list for Hierochloe alpina https://phytochem.nal.usda.gov/chemical-list/6247/982 (lists linalyl acetate for Hierochloe alpina)
Geraniol	—	—	monoterpene alcohol	View source Dr. Duke's Phytochemical and Ethnobotanical Databases biological activity page citing Austrian hay-blossom paper https://phytochem.nal.usda.gov/activity-antispasmodic?page=6%2C5 (lists geraniol and cites Buchbauer et al. 1990)
Coumarin	—	—	coumarin	View source Headspace-Analysis and Aroma Compounds of Austrian Hay-Blossoms (Flores Graminis, Graminis Flos) used in Aromatherapy https://www.tandfonline.com/doi/abs/10.1080/10412905.1990.9697858 (public abstract/snippet identifies coumarin among the aroma compounds)
Benzoic acid	—	—	aromatic carboxylic acid	View source Aromatherapeutic Blending https://www.scribd.com/doc/305063034/Aromatherapeutics-Blending (public preview lines 11262-11268 identify hay, Hierochloe alpina / Anthoxanthum odoratum, and state that the hay absolute contains coumarin and benzoic acid)
Nerol	—	—	monoterpene alcohol	View source Headspace-Analysis and Aroma Compounds of Austrian Hay-Blossoms (Flores Graminis, Graminis Flos) used in Aromatherapy https://www.tandfonline.com/doi/abs/10.1080/10412905.1990.9697858 (public abstract/snippet states small amounts of nerol were found in Austrian hay-blossom headspace)
Citronellol	—	—	monoterpene alcohol	View source Headspace-Analysis and Aroma Compounds of Austrian Hay-Blossoms (Flores Graminis, Graminis Flos) used in Aromatherapy https://www.tandfonline.com/doi/abs/10.1080/10412905.1990.9697858 (public abstract/snippet states small amounts of citronellol were found in Austrian hay-blossom headspace)
Farnesol	—	—	sesquiterpene alcohol	View source Headspace-Analysis and Aroma Compounds of Austrian Hay-Blossoms (Flores Graminis, Graminis Flos) used in Aromatherapy https://www.tandfonline.com/doi/abs/10.1080/10412905.1990.9697858 (public abstract/snippet states small amounts of farnesol were found in Austrian hay-blossom headspace)
Nerolidol	—	—	sesquiterpene alcohol	View source Headspace-Analysis and Aroma Compounds of Austrian Hay-Blossoms (Flores Graminis, Graminis Flos) used in Aromatherapy https://www.tandfonline.com/doi/abs/10.1080/10412905.1990.9697858 (public abstract/snippet states small amounts of nerolidol were found in Austrian hay-blossom headspace)

Profile source: Hermitage Essential Oils Austrian Hay Essential Oil; Hermitage WordPress product API for product 35568; Hermitage WordPress media API for product 35568; AUSTRIAN HAY ESSENTIAL OIL Safety Data Sheet; The Good Scents Company hay oil listing; Scents and Flavors Hermitage supplier directory; European fragrance inventory entry for Hierochloe alpina extract; Austrian hay-blossom literature references · https://hermitageoils.com/product/austrian-hay-essential-oil-2/ (reviewed 2026-07-08: live product page and Yoast JSON-LD describe the material as chiefly a sweet hay note with sun-dried agrestic qualities; the page also describes dry woody, sweet hay, barnyard, balsamic, rooty, and animalic facets, states the material is produced by co-extracting high-altitude hay with cedarwood, and exposes a `Data Sheets` block with an `SDS` button that is login-gated by JavaScript alert text rather than rendering a public download link directly in-page) ; https://hermitageoils.com/wp-json/wp/v2/product/35568 (reviewed 2026-07-08: public product API exposes `modified_gmt` `2026-01-26T10:54:40`, the same descriptive copy, `Botanical Name: Heirochloe alpina` [sic in supplier API], `Origin: Austria`, and an empty `acf` array) ; https://hermitageoils.com/wp-json/wp/v2/media?parent=35568&per_page=100 (reviewed 2026-07-08: parent attachment listing returned exactly three records, namely SDS attachment 52524 plus image attachments 47095 `Austrian-Hay-Absolute.jpg` and 35572 `hay-essential-oil.jpg`; the media objects expose `post:35568` / `wp:attached-to` linkage back to the product but no IFRA, allergen, TDS, COA, or GC-MS document) ; https://hermitageoils.com/wp-json/wp/v2/media/52524 (reviewed 2026-07-08: attachment metadata identifies source_url `https://hermitageoils.com/wp-content/uploads/2017/03/AUSTRIAN-HAY-ESSENTIAL-OIL-EN-2021_10_11.pdf`, mime_type `application/pdf`, filesize `246244`, and attachment relation to product 35568) ; https://hermitageoils.com/wp-content/uploads/2017/03/AUSTRIAN-HAY-ESSENTIAL-OIL-EN-2021_10_11.pdf (retrieved 2026-07-08: direct HTTP response was `200 OK` with `content-type: application/pdf` and `content-length: 246244`; SDS version 1 dated 2021-09-27, section 1 lists identified uses as `Cosmetic and alimentary use`, section 2 classifies Asp. Tox. 1 and Skin Sens. 1, and section 3 states the product contains no hazardous ingredients at or above regulated thresholds) ; https://www.thegoodscentscompany.com/data/es1040111.html (commercial listing; dermal toxicity not determined and flavor recommendation says not for flavor use) ; https://scentsandflavors.com/database/supplier/hermitage-oils/products (reviewed 2026-07-08: supplier directory entry lists Hermitage's Austrian Hay Essential Oil under material `hay oil` with CAS 8031-00-3) ; https://aei.pitt.edu/38691/1/A3621.pdf (Perfume and aromatic raw materials by EINECS Nos., lines 8021-8024 on page 221 list `Hierochloe alpina, ext.` as a distinct fragrance-inventory entry with EINECS 295-758-4) ; https://www.tandfonline.com/doi/abs/10.1080/10412905.1990.9697858 (abstract/snippet identifies Austrian hay-blossom aroma compounds including linalool, linalyl acetate, geraniol, and coumarin) ; https://www.tandfonline.com/doi/pdf/10.1080/10412905.1990.9697858 (public DOI-linked PDF endpoint advertises `In total more than 40 compounds were identified`, but a direct 2026-07-08 fetch returned `HTTP/2 403` with a Cloudflare challenge page rather than a readable PDF body) ; https://www.znaturforsch.com/ab/v45b/45b0723.pdf (direct 2026-07-08 fetch returned HTML instead of a readable PDF body, so its analytical table could not be transcribed in this pass) ; https://phytochem.nal.usda.gov/chemical-list/6247/982

What we're still learning · 9 data gaps

Good decisions start with knowing what is — and isn't — in the evidence.

No trustworthy public quantitative composition source was verified for this exact Austrian Hay cedarwood co-extract, so all constituent percentages remain null.
A public secondary snippet reviewed on 2026-07-08 in `Aromatherapeutics Blending` on Scribd quoted Austrian hay as `dominated by l-linalool (32%) and linalyl acetate (16.8%), nerolidol and farnesol at around 7%, and phenylethanol at 4.5%`, but this pass could not tie that excerpt to a directly readable primary paper page or to an exact-product GC/MS for the Hermitage cedarwood co-extract, so those numbers were not adopted.
The archive now carries `max_dermal_pct: 100` as a partial unrestricted normalization drawn from secondary hay-absolute guidance rather than from a source-native numeric limit for this exact Hermitage co-extract. Proper profiling is still blocked by a publicly reachable, product-specific IFRA certificate or equivalent leave-on safety document for product 35568. The live public product API and attachment endpoint reviewed on 2026-07-08 (`wp-json/wp/v2/product/35568`, modified_gmt `2026-01-26T10:54:40`, and `wp-json/wp/v2/media?parent=35568`) expose only the product page and exactly three attachments: featured-image attachment 47095, image attachment 35572, and SDS attachment 52524. `wp-json/wp/v2/media?search=Austrian%20Hay&per_page=100` returned exactly two records, and broader public media searches by parent, `Austrian Hay`, `Austrian`, `Austrian-Hay`, `Hay Essential`, `Hay Oil`, `Hierochloe`, and `alpina` exposed no Austrian-Hay-specific IFRA, allergen, TDS, COA, or GC-MS file. Direct live GET checks on 2026-07-08 confirmed the plausible Austrian-Hay IFRA and fragrance-allergen filenames resolve to the Hermitage homepage as `text/html` rather than to readable PDF binaries. The public IFRA Coumarin Standard does name hay absolute / hay oil CAS 8031-00-3 as a coumarin-contributing source, and a readable Hermitage IFRA certificate exists for a different product, `HAY ABSOLUTE SUPER PREMIUM IFRA 51`, but neither source supplies the actual assay or leave-on maximum for product 35568 itself, so the current 100 value remains non-verified.
Missing source type for composition verification: a publicly reachable, product-specific GC-MS, COA, or technical specification for the sold co-extract. Current public sources only support presence markers from Austrian hay literature, not percentages for this finished material, and a direct fetch of the DOI/PDF URL `https://www.tandfonline.com/doi/pdf/10.1080/10412905.1990.9697858` on 2026-07-08 still returned `HTTP/2 403` with a Cloudflare challenge page rather than a readable article PDF for transcription.
A botanical-identity reconciliation source is still missing. Hermitage markets the item under `Hierochloe alpina`, while commercial directory mapping ties the supplier listing to hay oil / `Lolium perenne` naming and Hermitage's own product-35568 image attachment 47095 is still named `Austrian-Hay-Absolute.jpg`.
A direct live GET check on 2026-07-08 confirmed the public Austrian Hay SDS still resolves as a real PDF (`application/pdf`, 246244 bytes), but the exact product's plausible IFRA filename variants still resolve to the Hermitage homepage as `text/html`, leaving `max_dermal_pct` blocked by a missing product-specific IFRA or equivalent leave-on safety document.
Odor intensity 50 is an archive normalization of the supplier's medium-strength qualitative scent language (`medium longevity`, dry woody, sweet hay, barnyard, balsamic, rooty, animalic, musty hay) rather than a source-native 0-100 instrument measurement.
No source-backed volatility-rate or tenacity-hours range was verified.
A 2026-07-08 live web search for `Austrian Hay Essential Oil IFRA OR SDS OR GC-MS` surfaced the Hermitage product page but no newer public product-specific IFRA, GC-MS, or technical sheet beyond the already cited SDS.