Tổng Quan
- Danh pháp khoa học
- Helichrysum gymnocephalum Humbert
- Họ thực vật
- Asteraceae (Compositae)
- Bộ phận dùng
- Leaves
- Phương pháp chiết xuất
- Steam distillation
- Màu sắc
- —
- Phân loại nốt hương
- Nốt Top
- Hương thơm
- —
- Chemotype / Cultivar
- —
Các quốc gia sản xuất chính
Tình trạng tại Việt Nam
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Camphoraceous, eucalyptus-like, fresh-cineole-medicinal, slightly herbaceous, faintly sesquiterpene-woody-undertone, Madagascar-veld-character, classical cineole-class top-note signature
Long-não, giống bạch đàn, cineole-tươi-y-dược, hơi cây cỏ, hậu-vị sesquiterpene-gỗ-nhẹ phía dưới, đặc trưng cây bụi Madagascar, hương đầu cineole-class kinh điển
2–4 giờ
Tên gọi tại Việt Nam
Pha Chế & Hòa Hợp
1,8-Cineole (47.4%) stimulates ciliary beat frequency and reduces mucus viscosity, facilitating upper-airway clearance — a well-established mechanism for the cineole constituent class.
Ref: B216 Ch.14 1,8-cineole constituent-class profile
1,8-Cineole activates TRPM8 cold-receptor channels producing airway-opening sensation; minor α-terpineol and p-cymene traces contribute bronchodilatory tone consistent with the cineole-dominant EO class.
Ref: B216 Ch.14 1,8-cineole constituent-class profile; class-extrapolation from eucalyptus cineole class
1,8-Cineole disrupts bacterial cell membrane integrity; whole-oil activity against MCF-7 cells suggests the combined cineole + sesquiterpene (δ-cadinene, γ-curcumene) fraction contributes synergistic bioactivity.
Ref: Afoulous et al 2011; B216 Ch.14 1,8-cineole constituent-class profile
1,8-Cineole suppresses arachidonic acid cascade and NF-κB-mediated cytokine production; sesquiterpene hydrocarbon pool (δ-cadinene, γ-curcumene) may provide additive modulation via class-level evidence.
Ref: B216 Ch.14 1,8-cineole constituent-class profile; class-extrapolation from eucalyptus cineole class
Whole-oil cytotoxicity positive against MCF-7 human breast cancer cell line; δ-cadinene component has independent in vitro anticarcinogenic activity per B216 Ch.14 sesquiterpene profiles.
Ref: Afoulous et al 2011; B216 Ch.14 δ-cadinene + sesquiterpene anticarcinogenic profiles
1,8-Cineole produces a topical counter-irritant effect via TRPM8 activation and local circulation enhancement; terpinen-4-ol trace may contribute mild anti-nociceptive activity.
Ref: class-extrapolation from eucalyptus cineole class (B216 Ch.14)
AI-summary
No RCT-grade clinical evidence has been located specifically for Helichrysum gymnocephalum essential oil. Afoulous et al (2011) demonstrated in vitro cytotoxicity against MCF-7 human breast cancer cells, representing a research-signal anticarcinogenic classification only; cell-line data does not constitute clinical evidence. Respiratory, mucolytic, and antimicrobial actions are class-extrapolations from the well-characterized 1,8-cineole constituent literature in Tisserand & Young (2014, Ch.14). Species-specific controlled human trials for rambiazana are absent from the literature surveyed.
NarrativeTâm trạng: Stimulating, Uplifting
Chakra
throat
Ngũ hành
kim
| Phương pháp | Liều lượng | Ghi chú |
|---|---|---|
| Diffusion | 3-5 drops in 100 ml water, 30-45 min sessions | Respiratory support in ventilated room only. AVOID around infants/young children — 1,8-cineole 47.4% triggers pediatric-face CONTRA per Melis 1989 cineole class. |
| Steam inhalation | 2-3 drops in bowl of hot water, 5-10 min | Highly effective for mucolytic/decongestion. AVOID face-proximity for children under 10 (cineole class). Allow steam to cool slightly before use. |
| Topical chest massage | 1-2% in carrier oil (3-6 drops per 10 ml) | Dilute in jojoba or sweet almond. Apply to chest/upper back for respiratory support. Avoid children's face application. Warm carrier slightly for better absorption. |
| Personal cold-mist inhaler | 5-6 drops on cotton wick | Portable respiratory support; safer alternative to direct room diffusion near children. Store upright; refresh wick weekly. |
| Warm compress | 3-4 drops in 500 ml warm water on cloth | Apply to chest or sinus area for targeted decongestant effect. Test skin tolerance first; concentrated cineole contact may irritate sensitive or damaged skin. |
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