Verbena[2]
Overview
Verbena, commonly known as vervain, is a perennial herb native to Europe and Asia but cultivated worldwide. It belongs to the Verbenaceae family and is prized for its medicinal and aromatic properties. The plant has a long history of use in traditional medicine, particularly in treating anxiety, insomnia, and digestive disorders. Modern applications extend to pharmaceuticals, where verbena extracts are used for their anti-inflammatory and antispasmodic effects. The essential oil, derived from the leaves and flowers, is widely used in aromatherapy and cosmetics for its refreshing, citrus-like scent.
Physical and Chemical Properties
Verbena exists in various forms, including dried leaves, powdered extracts, and essential oils. The essential oil is typically greenish-yellow with a density of around 0.89 g/cm³ and a boiling point near 200°C. It is soluble in alcohol and carrier oils but only partially soluble in water. Key active compounds include verbenalin, a glycoside with sedative properties, and citral, which contributes to its lemony aroma. The plant's chemical profile also features flavonoids and tannins, which enhance its therapeutic effects.
Main Applications
In the pharmaceutical industry, verbena is used in tinctures and teas to alleviate stress and promote sleep. Its antispasmodic properties make it effective in treating mild digestive issues like bloating and cramping. The cosmetic industry values verbena essential oil for its antiseptic and astringent qualities, often incorporating it into skincare products for oily or acne-prone skin. Additionally, its fresh scent makes it popular in perfumes, soaps, and candles. The food industry occasionally uses lemon verbena as a flavoring agent in teas and desserts.
Safety and Storage
Verbena is generally safe for topical and oral use in recommended doses. However, excessive consumption may lead to nausea or skin irritation in sensitive individuals. Pregnant women should avoid high doses due to potential uterine stimulation. Storage requires protection from heat, light, and moisture to preserve its volatile compounds. Essential oils should be kept in dark glass containers at temperatures below 25°C. Bulk dried leaves must be stored in airtight packaging to prevent mold growth.
B2B Procurement Guide
For B2B buyers, verbena is available in bulk as dried leaves, powdered extracts, or essential oils. Pricing varies by form and purity, with essential oils commanding higher prices due to extraction costs. Organic certification may add 20-30% to the cost but ensures pesticide-free quality. Key procurement considerations include supplier reliability, microbial testing reports (especially for raw herbs), and compliance with international standards like ISO or GMP. For essential oils, GC-MS analysis should confirm chemical composition and absence of adulterants.
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