Origanum Vulgare Leaf Oil, also known as oregano oil, is an essential oil extracted from the leaves of the oregano plant. It is renowned for its antimicrobial, antioxidant, and anti-inflammatory properties, making it valuable in cosmetic formulations and natural remedies.

Chemical Composition and Structure

The chemical composition of Origanum Vulgare Leaf Oil includes:

• Carvacrol: A primary phenolic compound known for its antimicrobial effects.
• Thymol: Another phenolic compound that contributes to its antiseptic properties.
• Terpenes: Including limonene and pinene, which provide aromatic qualities and additional benefits for skin health.
• Oils: Various other components that enhance its therapeutic effects and aroma.

Structurally, Origanum Vulgare Leaf Oil consists of a complex mixture of volatile compounds that work synergistically to provide beneficial effects.

Physical Properties

• Appearance: Typically a clear to yellowish liquid.
• Solubility: Soluble in oils and alcohol; limited solubility in water.
• pH: Generally acidic, varying based on extraction methods.
• Odor: Strong, herbaceous, and spicy aroma characteristic of oregano.
• Stability: Sensitive to light and air; should be stored in a cool, dark place to maintain potency.

Production Process

• Extraction: The oil is obtained through steam distillation of the leaves of the Origanum vulgare plant.
• Purification: The crude oil may undergo purification to concentrate its active compounds and remove impurities.
• Formulation: The purified oil is incorporated into cosmetic and personal care products, often combined with other ingredients to enhance performance and stability.

Applications

• Medical: Used in traditional medicine for its antimicrobial and anti-inflammatory properties.
• Cosmetics: Commonly included in skincare products, shampoos, and conditioners for its beneficial effects on skin and hair health.

INCI Functions:

Fragrance. It plays a very important role in the formulation of cosmetic products as it provides the possibility of enhancing, masking or adding fragrance to the final product, increasing its marketability. It is able to create a perceptible pleasant odour, masking a bad smell. The consumer always expects to find a pleasant or distinctive scent in a cosmetic product. 

Refreshing. This ingredient is included in cosmetic products to provide a refreshing or toning sensation to the skin and can also help relieve irritation or redness.

CAS  84012-24-8

EC number      281-670-3

• Food: Often used as a flavoring agent and preservative due to its antimicrobial properties.
• Industrial Uses: Limited applications, primarily in natural product formulations.

Environmental and Safety Considerations

Origanum Vulgare Leaf Oil is generally regarded as safe for topical application in cosmetics when used according to recommended guidelines. However, individuals with allergies to plants in the Lamiaceae family should exercise caution. Responsible sourcing and extraction practices are essential to ensure that the oil is free from harmful contaminants and produced sustainably.