Rosmarinus officinalis Oil, also known as rosemary essential oil, is extracted from the rosemary plant's leaves that belongs to the Lamiaceae family. 

Decomposition of the name and function of the components

• Rosmarinus - The genus of the plant from which the oil is derived, known as rosemary.
• officinalis - Indicates the specific species of the rosemary plant.

Description and function of the raw materials used in production

• Rosemary leaves - The leaves are the primary part from which the essential oil is derived. They contain beneficial and aromatic compounds like cineole, camphene, limonene, and others.
• Steam - Used in the steam distillation process to extract the essential oil from the leaves.

Summary of the extraction process

• Harvesting - Rosemary leaves are harvested from the plant.
• Distillation - The leaves are exposed to steam in a still. The heat causes the aromatic compounds within the leaves to evaporate.
• Condensation - The aromatic steam is then cooled and condensed to form the liquid essential oil.
• Separation - The essential oil is separated from the residual water.
• Storage - The essential oil is stored in dark glass containers to shield it from light and maintain its freshness and potency.

Applications

• Perfumery: Rosemary oil is recognized for its fresh and invigorating scent, and is often incorporated into fragrances and hygiene products.
• Cosmetic: Utilized in hair care products to promote growth and reduce dandruff, and in skin products for its toning and purifying attributes.
• Aromatherapy: The oil is tapped for its energizing properties, aiding in reducing fatigue and enhancing mental clarity.
• Culinary: In some cultures, it's also used as a flavoring or to season food, albeit in very limited quantities.

Properties

• Antimicrobial: Helps guard against a range of bacteria and fungi.
• Anti-inflammatory: Can assist in diminishing inflammation and pain.
• Circulation Stimulant: Can promote better blood circulation.
• Antioxidant: Protects cells from free radical damage.

Safety

It's essential to use rosemary oil in moderation and ensure proper dilution before application to prevent potential skin irritation or other adverse effects.