What is loquat leaf extract used for?

1. Excellent Respiratory System Protection​​​​​​​

This is the most traditional and classic benefit of loquat leaves. Its triterpenoids, such as ursolic acid and oleanolic acid, as well as volatile oils, effectively relieve coughs and wheezing. Simultaneously, it stimulates respiratory secretions, thins thick phlegm, making it easier to cough up, and has a clear effect on improving symptoms such as cough, excessive phlegm, and sore throat caused by colds, acute and chronic bronchitis, and asthma.

2. Significant Potential for Lowering Blood Sugar and Regulating Metabolism

This effect is mainly attributed to its core active ingredient—corosolic acid. Corosolic acid is known as "plant insulin." It can directly activate intracellular glucose transport proteins without relying on insulin receptors, promoting the uptake and utilization of glucose by peripheral tissues, thereby effectively lowering blood sugar levels. At the same time, it works synergistically with ursolic acid to protect pancreatic β cells and improve insulin resistance.

3. Powerful Anti-inflammatory and Antioxidant Capabilities

The flavonoids and polyphenols in loquat leaves are natural antioxidants that effectively scavenge free radicals in the body, reducing the production of various pro-inflammatory factors at their source. This dual mechanism of anti-inflammation and antioxidation not only acts on the respiratory system but also protects against systemic chronic inflammation, skin inflammation, and liver oxidative damage, helping to delay aging and prevent various chronic diseases.

4. Broad-spectrum Antibacterial and Immune Support Functions

In vitro studies have confirmed that loquat leaf extract has varying degrees of inhibitory effects on various common pathogenic bacteria, such as Staphylococcus aureus, Streptococcus pneumoniae, and Escherichia coli. Furthermore, through its anti-inflammatory and antioxidant effects, it helps maintain the stability of the immune system, preventing tissue damage caused by excessive immune responses, while enhancing the body's defense capabilities, providing a solid barrier against pathogen infection.

1. Pharmaceuticals and Health Products

• Hypoglycemic Drugs and Health Products: Corosolic acid has garnered significant attention due to its unique "plant insulin" mechanism of action. It can directly promote cellular glucose uptake and utilization without relying on insulin receptors, making it an ideal natural ingredient for adjunctive treatment of type 2 diabetes and metabolic syndrome. It is commonly used in related prescription drugs, OTC drugs, and dietary supplements.
• Respiratory System Drugs: Based on traditional efficacy and modern pharmacological validation, loquat leaf extract is a core ingredient in traditional Chinese medicine and herbal medicines (such as loquat syrup and cough syrup) for relieving respiratory symptoms caused by acute and chronic bronchitis, colds, etc.
• Anti-inflammatory and Immunomodulatory Effects: Ursolic acid and corosolic acid have significant anti-inflammatory activity and can be used as adjunctive treatment for inflammation-related diseases. Their antioxidant and immunomodulatory functions also make them suitable for enhancing the body's resistance.

2. Functional Foods and Beverages

• Blood Sugar Lowering Functional Foods: Added to meal replacement powders, special dietary foods, and solid beverages to serve individuals with abnormal blood sugar levels and help stabilize post-meal blood sugar.
• Healthy Throat-Soothing Products: Used in the development of throat lozenges, throat tablets, and herbal teas, targeting smokers and those who overuse their voices, providing throat soothing and relief from discomfort.
• General Health Foods: Utilizing natural antioxidant and anti-inflammatory ingredients to enhance the health attributes of products.

3. Cosmetics and Personal Care

• Anti-aging Products:Ursolic acid and corosolic acid possess powerful antioxidant capabilities, scavenging free radicals, reducing photoaging damage, and promoting collagen production. They are commonly used in anti-wrinkle and firming serums and creams.
• Whitening and Brightening Products: Studies have shown that ursolic acid can inhibit tyrosinase activity and reduce melanin production, making it a natural whitening ingredient in brightening products.
• Anti-acne and Soothing Products: Its antibacterial and anti-inflammatory properties make it suitable for acne-fighting and oil-controlling skincare products, helping to relieve skin inflammation and redness. It is also used to soothe sensitive skin.

4. Agriculture and Animal Husbandry

• Animal Health: As a natural plant-based additive, it is incorporated into feed to enhance livestock and poultry immunity, reduce antibiotic use, and potentially improve growth performance.
• Plant Protection: Its antibacterial activity is being studied for the development of biopesticides to control certain crop diseases, aligning with the trend of green agriculture.

1. Contraindications for Certain Populations

• Pregnant and Lactating Women: Due to a lack of sufficient clinical safety data, this medication should be avoided in these populations as a precaution.
• Use with Caution for Cold-type Coughs: In Traditional Chinese Medicine, loquat leaves are slightly cold in nature and suitable for dry coughs due to lung heat. For those with coughs caused by spleen and stomach deficiency or wind-cold (profuse, clear phlegm, and aversion to cold), use may worsen the condition.
• Persons with Hypoglycemia: Because it contains corosolic acid, which has a clear hypoglycemic effect, patients taking hypoglycemic drugs or those with hypoglycemia need to closely monitor their blood sugar levels to avoid the risk of hypoglycemia. It is recommended to use this medication under the guidance of a doctor.

2. Potential Risks of Drug Interactions

• Hypoglycemic Drugs: Concomitant use with insulin or oral hypoglycemic drugs (such as metformin, glibenclamide, etc.) may have a synergistic hypoglycemic effect, increasing the risk of hypoglycemia. Adjustments to the medication regimen are necessary.
• Other medications: Current research is insufficient, but as a precaution, if high doses of loquat leaf extract are needed while taking other medications, it is best to consult a doctor or pharmacist.

1. 100%Natural: Kintai's loquat leaf extract is a natural plant extract, with strict control over the raw materials to provide you with high-quality loquat leaf extract.

2. International Certification: Kintai's loquat leaf extract has multiple international certifications, including GMP, ISO9001:2015, ISO22000:2018, HACCP, KOSHER, and HALAL, meeting international safety standards and ensuring the quality of your products.

3. Customizable: Kintai offers OEM & ODM services, allowing for personalized customization to meet your needs.​​​​​​​