Active ingredients: Corosolic Acid
Specification:10%-20% Corosolic Acid
Appearance: Brown yellow or brown green powder
Part Used: Leaf
Test Method: HPLC
Solubility: Highly soluble in water and polar solvents
Sample: 10-50g Sample For free
MOQ: 1kg
Certificate: ISO22000, Kosher, Halal, EU, USDA, HACCP, FSSC 22000, Organic,FDA
Our Loquat Leaf Extract, also referred to as Eriobotrya Japonica Leaf Extract, is standardized to a high level of corosolic acid, the main bioactive compound responsible for supporting glucose metabolism. Corosolic acid works by enhancing cellular glucose uptake and promoting balanced energy use, making it a sought-after ingredient in dietary supplements and functional nutrition products.
In the current market, demand for Loquat Leaf Extract is growing steadily, particularly for powders with consistent corosolic acid content, as manufacturers require reliable quality for effective formulations. While many extracts on the market vary in potency or purity, our product offers precision-controlled extraction, ensuring each batch maintains stable corosolic acid levels without compromising natural plant compounds.
What sets Botanical Cube apart is our ability to combine this high-purity extract with flexible OEM solutions. We can provide tailored formulations, dosage customization, and private-label packaging designed specifically for corosolic acid products. This allows brands to create unique offerings while maintaining consistent efficacy and compliance with quality standards – something standard extracts alone cannot guarantee.
1. High, Standardized Corosolic Acid: 10–20% with ±5% batch variation, verified by HPLC — ensures consistent efficacy for formulations.
2. Ultra-Clean, Pharmaceutical-Grade: Heavy metals ≤20 ppm, pesticides ≤2 ppm, microbial count ≤1,000 CFU/g — safer than typical market extracts.
3. Proprietary Raw Material Control: Own planting bases + traceable supply chain — stable quality and reliable volume.
4. 20 Years R&D & Extraction Experience: Optimized yield, purity, and batch reproducibility — faster problem-solving for business partners.
5. OEM & Customization Ready: Tailored corosolic acid %, particle size, packaging, and regulatory support.
6. cGMP & ISO-Compliant Production: Controlled extraction, drying, milling — ensures powder consistency and shelf stability.
7. Reduced Downstream Costs: Verified COA reduces in-house testing and accelerates product launch.
| Test Item | Specification | Result | Method / Standard |
| Appearance | Fine brown-yellow powder | Fine brown-yellow powder | Visual inspection |
| Odor & Taste | Characteristic | Characteristic | Organoleptic |
| Corosolic Acid | 20.0% ± 2.0% | 20.30% | HPLC |
| Loss on Drying | ≤5.0% | 3.20% | GB 5009.3 / USP |
| Ash Content | ≤5.0% | 2.10% | GB 5009.4 / USP |
| Heavy Metals | ≤20 ppm | <10 ppm | ICP-MS |
| Lead (Pb) | ≤2 ppm | 0.8 ppm | ICP-MS |
| Arsenic (As) | ≤1 ppm | 0.3 ppm | ICP-MS |
| Cadmium (Cd) | ≤1 ppm | 0.2 ppm | ICP-MS |
| Mercury (Hg) | ≤0.1 ppm | <0.05 ppm | ICP-MS |
| Pesticide Residue | Negative / ≤2 ppm | Not detected | GC-MS / LC-MS |
| Microbial Total Plate Count | ≤1,000 CFU/g | 220 CFU/g | AOAC 990.12 |
| Yeast & Mold | ≤100 CFU/g | 15 CFU/g | AOAC 997.02 |
| E. coli | Negative | Not detected | AOAC 991.14 |
| Salmonella | Negative | Not detected | AOAC 2003.09 |
| Particle Size | 80 mesh | 95% through 80 mesh | Laser diffraction |
| Solubility | Soluble in ethanol | Pass | Visual / Organoleptic |
1. Blood Sugar Support
Often used in supplements aimed at maintaining healthy blood glucose levels.
2. Weight Management Products
Incorporated into formulas for fat metabolism and appetite regulation.
3. Antioxidant Formulations
Added to products targeting oxidative stress and overall cellular health.
4. Functional Beverages
Can be included in herbal teas or drink powders promoting metabolic wellness.
5. Nutraceutical & Dietary Supplements
Capsule, tablet, or powder forms for daily health maintenance.
1. Typical dosage ranges from 2–10 mg of corosolic acid per day, depending on formulation and target market.
2. Often standardized extracts are used at 1–2% corosolic acid content.
Tips: Usage may vary for functional beverages versus capsules; always follow local regulatory guidelines.
Q: How effective is corosolic acid for blood sugar management?
A: Studies suggest it supports healthy glucose levels and may help with insulin sensitivity, but it should complement a healthy diet and lifestyle.
Q: What is the difference between loquat leaf extract and other glucose-support herbs?
A: Corosolic acid has been specifically studied for its “insulin-like” activity, making it unique among herbal glucose support ingredients.
Q: Can I use it in beverages?
A: Yes, water-soluble forms can be formulated into teas, drinks, and functional powders.
Q: What certifications should I look for?
A: ISO, GMP, HACCP, and allergen-free certifications are common and improve market trust.
Q: How do I standardize corosolic acid content?
A: Choose a supplier offering standardized extracts (usually 10–20% corosolic acid) to ensure consistent potency across batches.
Partner with us for high-quality Loquat Leaf Extract Corosolic Acid Powder. Our extract is standardized, consistent, and ideal for nutraceuticals, functional foods, and beverages. We hold ISO, cGMP, and HACCP certifications to ensure safety and quality. Enjoy reliable bulk supply, flexible packaging, and customized OEM solutions. Contact us at info@botanicalsuppliers.com to discuss partnership opportunities.
Just send email to info@botanicalsuppliers.com, or submit your requirement in bottom form, we are of service at any time!
If you have any questions, please contact our experts.We are always ready to help you with individual formulations, private label solutions or any other requirements to kick-start your brand!