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lawsonia inermis leaf oil CO2 extract

Lawsonia inermis leaf oil CO2 extract is a green, woody, and earthy-scented fragrance ingredient obtained from henna leaf via CO2 extraction.

General Material Description

Lawsonia inermis leaf oil CO2 extract is a natural fragrance material obtained through supercritical carbon dioxide extraction from the leaves of the henna plant (Lawsonia inermis). Classified as a plant-derived essential oil, it appears as a concentrated aromatic extract exhibiting a green, woody, and earthy odor profile reminiscent of leafy tea. The extract is also referenced under synonyms such as black henna leaf oil CO2 extract, alkanna spinosa leaf oil CO2 extract, and lawsonia alba leaf oil CO2 extract. The compound’s detailed chemical information is catalogued in the PubChem database. Sourced primarily from henna leaf material, this extract represents a specialty fragrance ingredient used in perfumery and cosmetic formulations.

Occurrence, Applicability & Potential Uses

Lawsonia inermis leaf oil CO2 extract is naturally present in the henna leaf, a plant well-known for its dyeing and aromatic properties. The extract’s sensory profile makes it suitable as a fragrance agent, contributing green, woody, and earthy notes to fine fragrances and cosmetic products. It finds application particularly in formulations seeking natural or herbal scent characteristics. Regulatory standards such as those from IFRA (Global) provide guidance for safe usage levels in fragrance products, though the extract is not intended for flavor use. Its compatibility with alcohol-based solvents but insolubility in water influences formulation choices.

Physico-Chemical Properties Summary

This CO2 extract from Lawsonia inermis exhibits solubility in alcohol, which facilitates its incorporation into alcoholic fragrance bases and perfumery blends. It is insoluble in water, indicating hydrophobic character. The olfactory characteristics—green, woody, and earthy—derive from its complex phytochemical composition. The physical state and molecular interactions within alcohol solutions impact volatility and diffusion, critical factors in fragrance performance. Its extraction method via supercritical CO2 preserves delicate aromatic compounds while minimizing thermal degradation.

FAQ

What is Lawsonia inermis leaf oil CO2 extract and where does it come from?
Lawsonia inermis leaf oil CO2 extract is an essential oil derived from the leaves of the henna plant (Lawsonia inermis) using supercritical carbon dioxide extraction. This method yields a concentrated aromatic extract that exhibits green, woody, and earthy odor notes. The plant source, henna leaf, is known for its natural dyeing and fragrance properties. The extract is also known under other names such as black henna leaf oil CO2 extract and lawsonia alba leaf oil CO2 extract.
How is Lawsonia inermis leaf oil CO2 extract used and what are its key properties?
This extract primarily serves as a fragrance agent in perfumery and cosmetic formulations. It imparts a fresh green, woody, and earthy aroma that complements various scent profiles. The extract dissolves well in alcohol but not in water, which affects how it can be blended into products. Its physicochemical stability and scent longevity make it valuable for creating natural and herbal fragrance compositions. Usage levels and formulation practices adhere to regulatory guidance such as IFRA (Global) standards.
What regulations or safety considerations apply to Lawsonia inermis leaf oil CO2 extract?
Lawsonia inermis leaf oil CO2 extract is categorized as a fragrance material under IFRA (Global) guidelines, which specify conditions for its safe use in consumer products. It is not authorized for flavor applications. Toxicity data indicate no significant classification hazards under OSHA HCS standards, with limited toxicity data available, including some effects observed in animal studies at high doses. Safety assessments by fragrance industry groups recommend adherence to established usage limits. Regulatory databases such as the EPA ACToR and FDA provide additional data references.

US / EU / FDA / JECFA / FEMA / Scholar / Patents

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Other Information

Wikipedia:View
FAO:BASIC PRINCIPLES OF STEAM DISTILLATION

General Material Information

Preferred name lawsonia inermis leaf oil CO2 extract
Trivial Name Lawsonia inermis, ext.
Short Description black henna leaf oil CO2 extract
CAS Number 84988-66-9
ECHA Number 284-854-1
FDA UNII Search
Synonyms
  • alkanna spinosa leaf oil CO2 extract
  • black henna leaf oil CO2 extract
  • lawsonia alba leaf oil CO2 extract
  • lawsonia speciosa leaf oil CO2 extract
  • lawsonia spinosa leaf oil CO2 extract
  • spanish reseda leaf oil CO2 extract
  • rotantha combretoides leaf oil CO2 extract
  • Lawsonia inermis, ext.

PhysChem Properties

Material listed in food chemical codex No
Solubility
alcohol Yes
water No

Organoleptic Properties

Odor Type: Green
green, leafy, tea, woody, earthy
General comment At 100.00 %. green leafy tea woody earthy

Occurrences

Safety Information

Safety information

Hazards identification
Classification of the substance or mixture
GHS Classification in accordance with 29 CFR 1910 (OSHA HCS)
None found.
GHS Label elements, including precautionary statements
Pictogram
Hazard statement(s)
None found.
Precautionary statement(s)
None found.
Oral/Parenteral Toxicity:
intraperitoneal-mouse LD50 500 mg/kg
BEHAVIORAL: CONVULSIONS OR EFFECT ON SEIZURE THRESHOLD
Chemical and Pharmaceutical Bulletin. Vol. 13, Pg. 882, 1965.

Dermal Toxicity:
Not determined
Inhalation Toxicity:
Not determined

Safety in use information

Category:
fragrance agents
RIFM Fragrance Material Safety Assessment: Search
IFRA Code of Practice Notification of the 49th Amendment to the IFRA Code of Practice
Recommendation for lawsonia inermis leaf oil CO2 extract flavor usage levels up to:
not for flavor use.

Safety references

EPA ACToR:Toxicology Data
EPA Substance Registry Services (SRS):Registry
National Institute of Allergy and Infectious Diseases:Data
lawsonia inermis l. leaf oil CO2 extract
Chemidplus:0084988669