Rosmarinic Acid Powder

Heathkintai^® is a professional plant extract manufacturer and research and development company. We have a dedicated R&D team and a large-scale production facility. For over a decade, kintai has specialized in producing high-purity rosemary extract, specifically rosmarinic acid powder, derived from rosemary stems and leaves. Our rosmarinic acid, with a purity exceeding 98%, exhibits excellent water solubility and exceptional stability, making it an ideal raw material for a wide range of applications, including natural food preservatives, cosmetics, health supplements, and pharmaceuticals.

As a leading rosmarinic acid supplier in China, we boast a monthly production capacity of 800 kg and ample inventory, offering highly competitive factory-direct wholesale pricing. We also provide free samples and support product customization to meet your specific needs.

KINTAI 50%Rosmarinic Acid COA

KINTAI 50%Rosmarinic Acid COA​​​​​​​

• Regulatory Approval and Compliance：It is approved as a food additive and dietary supplement ingredient by the US FDA, the EU EFSA, and other agencies. It is legal and safe for use within the prescribed dosage.
• Toxicology Research Support：Several studies have demonstrated that it has low acute and long-term toxicity, no significant side effects at typical doses, and is well tolerated by humans.
• Application Safety：Used concentrations of 0.1%-1% in cosmetics and less than 0.1% in food are generally within the safe range. There are no reports of phototoxicity or irritation.

Rosmarinic acid (RA) is the main ingredient in Jingdaining Capsules. Modern pharmacological research has found that RA has significant anti-inflammatory and analgesic effects, with a limited inhibitory effect on various types of inflammation. Rosmarinic Acid Powder can inhibit the secretion of inflammatory factors such as IL-6 and IL-1β, exerting its anti-inflammatory effects by regulating the NF-κB pathway.

RA, a natural phenolic acid compound extracted from various plants, has recently garnered widespread attention for its anti-inflammatory properties. This study found that RA significantly reduced the expression of inflammatory factors both in vitro and in vivo. In SD rats induced by cervicitis, RA treatment significantly decreased plasma leukocyte and MDA levels, as well as pro-inflammatory factor levels in tissue homogenates, compared to the model group, demonstrating that RA can effectively regulate systemic and localized inflammation. This inhibitory effect on the release of inflammatory factors is consistent with existing research reports and reveals one of the core anti-inflammatory pathways of RA.

（reference：Study on the anti-cervicitis effect and mechanism of rosmarinic acid）

1. Antioxidant and Anti-Inflammatory Effects

Rosmarinic acid effectively scavenges free radicals, inhibits oxidative stress, and reduces the production of inflammatory factors (such as TNF-α and IL-6), alleviating chronic inflammation.

2. Antibacterial and Antiviral Effects

It has inhibitory effects on a variety of bacteria (such as Staphylococcus aureus and Escherichia coli) and viruses (such as influenza and herpes), making it a natural antiseptic and an aid in infection prevention and treatment.

3. Skin Protection and Whitening

In cosmetics, it can inhibit melanin production, reduce UV damage, improve pigmentation and photoaging, and promote skin barrier repair, soothing sensitive skin.

4. Neuroprotective and Anti-Allergic Effects

Research shows that it can penetrate the blood-brain barrier, reduce oxidative damage to nerve cells, and potentially improve cognitive function. It can also inhibit histamine release, alleviating allergy symptoms.

5. Cardiovascular and Metabolic Regulators

It helps lower blood sugar and lipid levels, improve endothelial function, prevent atherosclerosis, and support cardiovascular health.

1. Food Industry

• Natural Preservatives: Alternatives to synthetic antioxidants (such as BHT/BHA) added to oils, meat products, and baked goods to delay oxidative rancidity and extend shelf life (usually at a dosage of 0.01%-0.1%).
• Functional Food Ingredients: Used in health beverages and dietary supplements to provide anti-inflammatory and immune-boosting properties.

2. Cosmetics and Skincare

• Antioxidant and Anti-Aging: Added to serums and creams (at a concentration of 0.1%-1%), they neutralize free radicals, reduce UV damage, and slow photoaging.
• Whitening and Soothing: Inhibits tyrosinase activity and reduces melanin production; reduces redness, swelling, and allergies, making them suitable for sensitive skin care products.

3. Pharmaceuticals and Health Products

• Anti-inflammatory and Anti-allergic Drugs: Used to relieve symptoms of allergic rhinitis, asthma, and other conditions (commonly found in oral preparations or sprays).
• Neuroprotectants: Studies have shown potential benefits for neurodegenerative diseases such as Alzheimer's and Parkinson's.
• Cardiovascular Health: Assists in regulating blood lipids and blood sugar, protects endothelial function, and is used in health supplements for the prevention of cardiovascular and cerebrovascular diseases.

4. Agriculture and Feed

• Animal Feed Additives: Replace antibiotics, enhance animal immunity, and improve the oxidative stability of meat.
• Botanical Pesticides: Leverage their antimicrobial activity to develop green pesticides and reduce chemical pesticide residues.

1.Multiple specifications (5%-98% purity) are available from stock. We also offer customization Rosmarinic Acid Powder for solubility, color, dosage, and other application-specific needs.

2.Own planting base to ensure a stable supply of raw materials and cost advantages.

3.Fresh leaf processing, and counter-current extraction, improve yield and extraction efficiency.

Q1:Is rosemary good for aging skin?

A1:Rosemary oil has been known to be rich in antioxidants, perfect for individuals concerned with aging caused by free radicals. 

Q2:What's the MOQ?

A2:Our MOQ is 1kg.

Q3:Are you a manufacturer or a trading company?

A3:We are a manufacturer and supplier. We have our own R&D team and production factory.