Overview
Lagerstroemia extract is derived from the leaves, flowers, or bark of Lagerstroemia indica, commonly known as crape myrtle. This plant has been used in traditional Asian medicine for centuries, valued for its therapeutic properties. Modern extraction techniques have enabled the isolation of bioactive compounds such as tannins, flavonoids, and phenolic acids, which contribute to its antioxidant and anti-inflammatory effects. The extract is widely utilized in cosmetic and pharmaceutical industries, particularly in formulations targeting skin health and inflammation. In B2B markets, Lagerstroemia extract is available in various forms, including powders, liquids, and standardized extracts with specific active compound concentrations. Buyers should prioritize suppliers who provide transparent information about the plant part used, extraction method (e.g., water, ethanol, or supercritical CO2), and concentration of key bioactive components to ensure product efficacy and consistency.
Physical and Chemical Properties
Lagerstroemia extract is typically a light yellow to brown substance, available as a fine powder or viscous liquid. Its solubility depends on the solvent used during extraction; water and ethanol are common choices. The extract contains a complex mixture of phytochemicals, including ellagitannins (e.g., punicalagin), flavonoids (e.g., quercetin), and triterpenoids, which are responsible for its biological activities. The density of liquid extracts ranges approximately between 1.0-1.2 g/cm³, depending on the concentration. While specific melting and boiling points are not applicable due to its botanical nature, the extract is stable under typical storage conditions. Its antioxidant capacity, measured by ORAC (Oxygen Radical Absorbance Capacity) or similar assays, is a key quality indicator for industrial buyers seeking high-performance ingredients for skincare or health products.
Main Applications
In the cosmetics industry, Lagerstroemia extract is prized for its ability to soothe irritated skin, reduce redness, and combat oxidative stress caused by environmental pollutants. It is frequently incorporated into serums, creams, and toners targeting sensitive or aging skin. The extract's astringent properties also make it suitable for formulations aimed at oily or acne-prone skin. Pharmaceutical and nutraceutical applications include its use as an anti-inflammatory agent in topical preparations for minor wounds or skin conditions. Some traditional medicine systems employ it internally for its purported benefits in managing diarrhea and fever, though modern applications focus predominantly on topical use. Emerging research explores its potential in wound healing and as a natural preservative in cosmetic products due to its antimicrobial properties.
Safety and Storage
Lagerstroemia extract is generally considered safe for topical application in cosmetic concentrations (typically 0.5-5%). However, as with any botanical ingredient, allergic reactions are possible, particularly in individuals sensitive to plants in the Lythraceae family. Manufacturers should conduct patch tests before large-scale product formulation. The extract is not recommended for oral use unless specifically approved and standardized for such applications. Proper storage is essential to maintain the extract's stability and efficacy. Powdered forms should be kept in airtight containers with desiccants to prevent moisture absorption, while liquid extracts may require refrigeration after opening to prevent microbial growth or oxidation. Suppliers often provide shelf-life information (commonly 12-24 months), but buyers should verify stability data, especially for large-quantity purchases intended for long-term use.
B2B Procurement Guide
When procuring Lagerstroemia extract in bulk, B2B buyers should prioritize suppliers who offer comprehensive documentation, including certificates of analysis (COA) detailing active compound concentrations, heavy metal content, and microbial limits. The extraction method significantly impacts the final product's properties; ethanol extracts may have different applications than water or supercritical CO2 extracts. Request batch-specific testing reports to ensure consistency. Price negotiation often depends on order volume, concentration, and purity. For reference, standardized extracts with quantified active compounds (e.g., ≥10% tannins) command higher prices than crude extracts. Consider minimum order quantities (MOQs) and lead times, especially if sourcing directly from growers or specialized extraction facilities. Establish clear specifications regarding solubility, particle size (for powders), and recommended usage levels to align with your formulation requirements.
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