Hyacinth absolute (Hyacinthus orientalis L., Liliaceae family — first Liliaceae flower-absolute SINGLETON in Phase 3 mass-ingest) is a benzyl-alcohol-extreme-dominant + cinnamyl-alcohol + benzyl-acetate + methyleugenol-trace floral absolute (NOT steam-distilled essential oil — solvent extraction from flowers) with T&Y-EXPLICIT 1.3% dermal cap (carcinogenic-constituent limit). B216 Ch.13 p.624–625 cites Lawrence 1979 chemistry: benzyl alcohol 40.0% + (E)-cinnamyl alcohol 11.0% + benzyl acetate 8.1% + benzyl benzoate 6.0% + 2-phenylethanol 3.7% + 1,2,4-trimethoxybenzene 3.0% + methyleugenol 1.5% + phenylethyl benzoate 1.2% + p-methoxyphenylethanol 1.2%. Hazard signature: T&Y verbatim "Hazards: Potentially carcinogenic, based on methyleugenol content. Contraindications: None known." Three nested dermal caps — EU 0.01% / IFRA 0.03% / T&Y 1.3% — with T&Y 1.3% derived as 1.5% methyleugenol × 0.02% methyleugenol-dermal-limit (Methyleugenol profile Ch.14). IFRA leave-on methyleugenol cap 0.0004% (IFRA 2009); SCCNFP 0.0002% (European Commission 2002). Contraindications: None known — pregnancy NOT contraindicated per T&Y verbatim. Patch test POSITIVE for safety per Opdyke 1976 p.795 (8% on 25 volunteers neither irritating nor sensitizing); non-phototoxic; acute toxicity low (rat oral LD50 4.2 g/kg; rabbit dermal LD50 >1.25 g/kg). Methyleugenol-carcinogen-cap-class — class-shared with [[champaca-orange]] (EO703 16a) + [[chervil]] (EO706 16b) + other methyleugenol-bearing oils where T&Y dermal cap derived from constituent-level rodent-carcinogenicity rail. Liliaceae family SINGLETON in Phase 3 mass-ingest — first Liliaceae entry; family chemotaxonomic-heterogeneity rail not yet established (single data point). Solvent-extracted ABSOLUTE NOT steam-distilled EO — peer with [[honeysuckle]] EO744 21b + [[ginger-lily]] EO734 20a + [[jasmine-grandiflorum]] EO646 14a + [[jasmine-sambac]] EO645 14a + [[cassie]] EO702 15d + [[boronia]] EO693 15a. Commercial-authenticity caveat (B216 explicit verbatim): "There are doubts about whether any genuine hyacinth absolute is produced." — supply chain authenticity rail; commercial product may be reconstitution from synthetic + other floral-absolute fractions; verify CoA + provenance for genuine Hyacinthus orientalis solvent-extracted absolute. Forms 22a heterogeneity trio with [[inula]] EO746 (clean Dittrichia graveolens — NOT elecampane) + [[jaborandi]] EO747 (EU+Canada-prohibited, contraindicated_all) — opening Mini-Batch 22 with three radically different hazard signatures across three different families.
Tổng Quan
- Danh pháp khoa học
- Hyacinthus orientalis L.
- Họ thực vật
- Liliaceae
- Bộ phận dùng
- Flowers
- Phương pháp chiết xuất
- solvent_extraction
- Màu sắc
- —
- Phân loại nốt hương
- Nốt Middle
- Hương thơm
- —
- Chemotype / Cultivar
- —
Các quốc gia sản xuất chính
Tình trạng tại Việt Nam
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heady narcotic spring blooms, softly waxy green freshness, sweet benzyl warmth with jasmine-shared depth, crystalline dewy clarity, trailing balsamic whisper of cinnamon
Hoa xuân nồng nàn say đắm, xanh mướt ngọt ngào như sáp mềm mại, ấm dịu ngào ngạt sâu lắng, trong vắt đẫm sương mai, thoảng hương quế và nhựa thơm phảng phất
2–4 giờ
Tên gọi tại Việt Nam
Pha Chế & Hòa Hợp
Narcotic-floral headspace volatiles (benzyl alcohol, phenylacetaldehyde, benzyl acetate) engage olfactory–limbic pathways classically associated with stress attenuation; mechanism is olfactory-neuromodulatory and consistent with traditional flower absolute aromatherapy.
Ref: Tisserand & Young 2014, Ch.13 p.624–625
Complex narcotic-floral headspace stimulates limbic circuits via olfactory bulb projections to the amygdala and hippocampus; mood-elevation is a widely-accepted traditional application for flower absolutes without RCT confirmation for this species.
Ref: Tisserand & Young 2014, Ch.13 p.624–625
High benzyl alcohol dominance combined with indolic trace volatiles produces a characteristically narcotic-heavy floral perception at micro-dosage; euphoric quality diminishes with excessive concentration due to olfactory fatigue.
Ref: Tisserand & Young 2014, Ch.13 p.624–625; Lawrence BM 1979
Benzyl alcohol (dominant constituent) is a registered pharmaceutical antimicrobial preservative that disrupts microbial cell membranes; activity is constituent-level and has not been demonstrated for the whole absolute in in vivo assays.
Ref: class-extrapolation from benzyl alcohol constituent pharmacology (Tisserand & Young 2014, Ch.14)
Brief olfactory exposure to narcotic-floral volatiles is employed in aromatherapy for acute situational stress; proposed mechanism is HPA-axis modulation via limbic input, consistent with class evidence for high-benzyl-alcohol flower absolutes.
Ref: Tisserand & Young 2014, Ch.13 p.624–625
AI-summary
No RCT-grade clinical evidence has been located specifically for hyacinth absolute. Opdyke (1976) reports negative patch tests at 8% in 25 volunteers with no phototoxic reaction, establishing a favourable cutaneous sensitisation profile at concentrations well above normal use levels. Rat oral LD50 4.2 g/kg and rabbit dermal LD50 >1.25 g/kg confirm low acute systemic toxicity. The dominant clinical safety constraint is methyleugenol content (~1.5%), a rodent genotoxic carcinogen (T&Y Ch.14), which drives the adult dermal cap to 1.3% and activates strict IFRA (2009) and EC SCCNFP (2002) leave-on limits. All therapeutic applications rest on traditional aromatherapy consensus and constituent-level pharmacology; no controlled human trials have been cited or located.
NarrativeTâm trạng: Uplifting, Calming
Chakra
heart
Ngũ hành
moc
| Phương pháp | Liều lượng | Ghi chú |
|---|---|---|
| Diffusion | 1-2 drops in 100ml water (ultrasonic diffuser) | Preferred route; no dermal methyleugenol exposure. Limit to 30-min sessions — narcotic intensity causes headache if overused. Ventilate between sessions. Avoid with infants or in pregnancy. |
| Inhalation — passive inhaler strip | 1 drop on tissue or inhaler wick; 3-5 second brief inhalation | For acute stress or mood support. Avoid sustained concentrated vapour inhalation — narcotic-floral profile can induce nausea or olfactory fatigue. Suitable for single-use situational relief. |
| Personal fragrance blend | ≤1.3% in jojoba wax as a leave-on perfumery dilution | Hard dermal ceiling: 1.3% adult — methyleugenol-driven per T&Y Ch.14. Do NOT exceed for leave-on use. Contraindicated in pregnancy; IFRA 2009 methyleugenol cap applies to final formulation. |
| Topical massage blend | 0.5-1% in 10ml carrier oil (≤1.3% absolute ceiling, adult) | Sub-cap dilution recommended; methyleugenol carcinogen class limits topical to ≤1.3% max. Use stable carrier. Patch-test first. Avoid face, mucous membranes, broken skin, and during pregnancy. |
| Bath | 2-3 drops dispersed in 30ml full-fat milk before adding to bath | Disperse in milk or bath gel first — never add undispersed oil to water. Rinse-off reduces methyleugenol dermal load vs leave-on. Avoid with sensitive skin and during pregnancy. |
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