White Willow Bark Extract Manufacturer and Supplier
White Willow Bark Extract is a natural plant ingredient derived from the bark of the white willow tree. It is rich in active substances such as salicin. Salicin is converted to salicylic acid in the body, which has analgesic, anti-inflammatory, and antipyretic properties. Healthkintai® is a manufacturer specializing in the production and sales of White Willow Bark Extract powder. White willow bark extract is one of KINTAI's main products. The main ingredient of Shirayanagi bark extract is salicin. The specifications produced by KINTAI contain 10%, 12%, 15%, 20%, 25% Salicin, Another ratio is 4:1. All products are certified by ISO9001 and FDA. We are committed to providing customers with safe, effective, and stable White willow bark extract. Welcome to contact us at info@kintaibio.com.

White Willow Bark Extract Specification
|
ProductName |
White Willow Bark Extract |
Appearance |
Brown yellow powder |
|
Shelf Life |
24 months |
Test Method |
HPLC |
|
CAS No. |
84082-82-6 |
Molecular Weight |
286.27 |
|
EINECS |
282-029-0 |
Mlecular Formula |
C13H18O7 |
|
Specification |
10%,12%,15%,20%,25% Salicin , 4:1 |
Part of Used |
Weeping willow bark |

Product Quality Standard of white willow bark extract
|
Extraction Solvent |
Ethyl alcohol |
|
Solubility |
Dissolved in water |
|
Identification |
TLC , HPLC |
|
Sulphated Ash |
NMT 0.5% |
|
Heavy metals |
NMT 20 PPM |
|
Loss On Drying |
NMT 5.0% |
|
Powder size |
80Mesh, NLT90% |
|
Assay of Red Clover Extract (HPLC test, percent, Standard in House) |
Min. 95.0% |
|
Residual Solvents |
|
|
- N-hexane |
NMT 290 PPM |
|
- Methanol |
NMT 3000 PPM |
|
- Acetone |
NMT 5000 PPM |
|
- Ethyl Acetate |
NMT 5000 PPM |
|
- Ethanol |
NMT 5000 PPM |
|
Pesticide Residues |
|
|
- Total DDT (Sum of p,p'-DDD,P,P'-DDE,o,p'-DDT and p,p' -DDT) |
NMT 0.05 PPM |
|
- Aldrin, Endrin, Dieldrin |
NMT 0.01 PPM |
|
Microbiological Quality (Total viable aerobic count) |
|
|
- Bacteria, CFU/g, not more than |
NMT 10³ |
|
- Moulds and yeasts, CFU/g, not more than |
NMT 10² |
|
- E.coli, Salmonella, S. aureus, CFU/g |
Absence |
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Process flow of Kintai White Willow Bark Extract
- Raw Material Preparation & Extraction
- Purification & Decolorization
- Concentration & Drying
- Finishing & Quality Control

Side effects of White Willow Bark Extract
The safety of topical salicylic acid depends on its concentration. A concentration of 0.5%-2% in skincare products is generally safe, but it may cause initial dryness, stinging, or peeling, requiring tolerance and strict sun protection. High concentrations (>20%) must be used in professional settings; home use carries a high risk.
Oral use of salicylic acid (aspirin) is strictly prohibited, especially in children and adolescents after viral infections, as it may cause fatal Reye's syndrome. Pregnant women and those with sensitive skin should use it with caution and avoid combining it with other irritants (such as fructose and retinol) to prevent barrier damage.

White willow bark Extract for skin
Gentle Acne Treatment and Pore Management
The resulting salicylic acid is fat-soluble and penetrates deep into pores, effectively dissolving and removing excess oil and dead skin cells that clog pores, preventing and reducing the root causes of blackheads, whiteheads, and acne. Furthermore, this ingredient possesses excellent anti-inflammatory and mild antibacterial properties, precisely targeting acne-prone areas to relieve redness, swelling, and inflammation. Compared to directly adding salicylic acid, this ingredient is gentler and more soothing, making it more suitable for sensitive skin.

Excellent Anti-Inflammation and Sensitivity Relief
In addition to its acne-fighting and anti-inflammatory properties, the salicin and polyphenols it contains are naturally soothing ingredients, effectively inhibiting the release of inflammatory factors in the skin. This property makes it particularly suitable for alleviating the redness, stinging, and discomfort caused by rosacea and eczema, effectively calming and soothing irritated skin.
Antioxidant and Astringent Effects
This extract is rich in powerful antioxidants such as flavonoids and tannins, which help protect the skin from free radicals and slow the signs of photoaging. Furthermore, its mild astringent properties help temporarily tighten pores and absorb excess surface shine, providing a long-lasting matte finish and maintaining a refreshed appearance for oily skin.
White willow bark Extract Benefits

Pain Relief and Anti-Inflammation
This is the most classic and well-known function of White Willow Bark Extract powder . Its active ingredient, salicin, is converted into salicylic acid in the body, exerting analgesic and anti-inflammatory effects similar to aspirin. It effectively inhibits the synthesis of pain-causing substances such as prostaglandins, reducing the body's inflammatory response. Therefore, it is often used to relieve mild to moderate pain from a variety of causes, such as headaches, toothaches, back pain, joint pain (such as osteoarthritis), and muscle discomfort. It also has a certain effect on joint swelling and limited mobility caused by inflammation, making it an important herbal anti-inflammatory agent.
Fever Reduction and Cold Relief
Due to the properties of salicin, this extract also has a potent antipyretic effect. It acts on the thermoregulatory center in the hypothalamus, promoting vasodilation and sweating, thereby helping to dissipate heat and lower body temperature. In traditional herbal medicine, it is often used to treat fever symptoms caused by colds, influenza, and other infectious illnesses. Its anti-inflammatory properties also help alleviate the general muscle aches and sore throats associated with colds, providing comprehensive relief and supporting the body's natural recovery.
Antioxidant and Skin Health
Beyond its classic analgesic and fever-reducing properties, modern research has revealed that white willow bark extract, rich in flavonoids and polyphenols, possesses significant antioxidant capacity. This helps neutralize free radicals, reducing cellular damage caused by oxidative stress and overall supporting healthy aging. This function is widely used in skincare. Its anti-inflammatory and antioxidant properties make it an effective ingredient for improving acne, soothing irritation, and calming redness. It also helps protect skin collagen and slow the signs of aging, making it a common ingredient in anti-aging and skin-purifying products.
White Willow Bark Extract Uses
White Willow Bark Extract for Healthcare
This is its core application area. As a natural analgesic and anti-inflammatory agent, this extract is widely used to relieve mild to moderate headaches, joint pain (such as that caused by osteoarthritis and rheumatoid arthritis), muscle aches, and back pain. Its antipyretic properties also make it a popular herbal option for alleviating cold and fever symptoms. It is often formulated as capsules, tablets, or tinctures, offering a botanical alternative to nonsteroidal anti-inflammatory drugs (NSAIDs).
White Willow Bark Extract Supplements
As a dietary supplement, white willow bark extract is a key ingredient in the health supplement market. It is incorporated into complex formulas designed to support joint health, improve mobility, and combat inflammation. It often works synergistically with ingredients such as glucosamine, chondroitin, and curcumin to provide daily joint care and post-workout recovery support for athletes and the elderly, meeting market demand for natural health products.
White Willow Bark Extract for Skin Care
Its anti-inflammatory and antioxidant properties are particularly valuable in skincare products. Products containing this extract can effectively soothe skin irritation, reduce redness, and help manage acne. Its gentle exfoliating properties help cleanse pores, while its antioxidant properties fight free radicals and protect collagen, thereby slowing skin aging. It is commonly found in serums, masks, and creams for acne treatment, allergy relief, and anti-aging.

White Willow Bark Extract Veterinary and Pet Care
This application is expanding. In the veterinary field, White Willow Bark Extract powder is used to relieve chronic pain and discomfort caused by osteoarthritis in pets, including dogs. Its natural properties are considered a gentler, long-term maintenance option compared to traditional medications. It is often formulated into pet-specific soft chews or supplements to improve mobility and quality of life in elderly pets.
Why Choose KINTAI White Willow Bark Extract powder?
- Fast delivery, manufacturer direct sales, quality assurance
- Support third-party professional testing
- Has a good price advantage
- Free samples and product customization available

FAQ
Q: Is white willow bark a natural blood thinner?
A: White willow contains a substance (salicin) that is converted by the body into a salicylate similar to the blood-thinner aspirin. It has anti-thrombotic action.
Q: Is white willow bark good for teeth?
A: There is some evidence that willow bark can aid in reducing inflammation, which helps with pain relief.
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