Description
The principal water-soluble phenolic acid antioxidant from rosemary and other Lamiaceae plants, supplied as an isolated high-purity compound. Complements Carnosic Acid (fat-soluble) for water-phase oxidation protection in aqueous food, beverage, and cosmetic applications.
Pale yellow to brownish-yellow crystalline powder. Soluble in water and food-grade ethanol; limited oil solubility. Sensitive to alkaline conditions and elevated temperatures.
We supply food-grade and cosmetic-grade Rosmarinic Acid from manufacturers in China holding ISO, Halal, Kosher and other certifications relevant to the product and production.
Common market grades include 50 percent Rosmarinic Acid (cost-effective baseline grade), 90 percent Rosmarinic Acid (premium food and cosmetic grade), and 98 percent Rosmarinic Acid (research and pharmaceutical applications).
Bulk and reduced-MOQ shipments. Batch-level COA covering rosmarinic acid content by HPLC, related-substance profile, heavy metals, and microbiology.
Introduction
Rosmarinic Acid is a phenolic acid (an ester of caffeic acid and 3,4-dihydroxyphenyllactic acid) found in many Lamiaceae family plants, including rosemary, oregano, thyme, sage, basil, and lemon balm. It is the principal water-soluble antioxidant in these species and a marker compound in standardized rosemary, oregano, and Melissa officinalis extracts.
Industrial production proceeds by hot-water or aqueous-ethanol extraction of dried rosemary leaves or other Lamiaceae source plants, followed by chromatographic purification and crystallization. Source plant choice affects yield and price: oregano and rosemary are the dominant industrial sources.
The molecule's antioxidant mechanism is hydrogen-atom donation from the two catechol moieties to peroxyl radicals, similar to other phenolic antioxidants but operating in the water phase rather than the lipid phase. Rosmarinic Acid also displays anti-inflammatory, anti-allergic, and anti-microbial properties that have driven its adoption in cosmetic and nutraceutical applications.
Regulatory status as a food ingredient is covered under rosemary-extract approvals (E392 in the EU, GRAS in the United States) rather than as a standalone additive. As an isolated compound, Rosmarinic Acid is used principally in supplement, cosmetic, and pharmaceutical applications where ingredient declaration of a specific named compound is preferred.
Strategic position is complementary to Carnosic Acid in the rosemary-derived antioxidant family: Carnosic Acid covers the lipid phase, Rosmarinic Acid covers the aqueous phase, and formulations targeting whole-system protection often include both.
Where it is used
- Water-phase natural antioxidant for functional beverages, juices, and ready-to-drink products
- Anti-aging cosmetic serums, lotions, and skincare formulations
- Dietary supplements positioned for anti-inflammatory, anti-allergic, and antioxidant function
- Premium pet food and pet supplement applications
- Cosmetic and personal-care products including hair-care formulations
- Topical and oral mucosa preparations where water-soluble antioxidant function is required
- Sports nutrition and recovery beverages
- Functional food applications requiring standardized phenolic acid declaration
Technical data
| Item | Specification |
|---|---|
| Appearance | Pale yellow to brownish-yellow crystalline powder |
| Rosmarinic acid (HPLC) | ≥ 50% / 90% / 98% (grade dependent) |
| Loss on drying | ≤ 5.0% |
| Residue on ignition | ≤ 2.0% |
| Heavy metals (as Pb) | ≤ 2 mg/kg |
| Total plate count | ≤ 1000 cfu/g |
| Residual solvents | Meets ICH Q3C limits |
| Particle size | ≥ 95% through 80 mesh |
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