Where to buy White willow bark extract? MR Natural is a professional manufacturer for White willow bark extract in China since 2006.
1. What is White willow bark extract?
White willow bark extract is a kind of herbal extract obtained by spray-drying the bark of Salix alba L(in the Salix family).
It mainly contains salicin and other ingredients.
2. Source of white willow
White willow was born in a wetland near the water. Cultivated all over the country. Mainly distributed in the Yangtze River Basin and various parts of South China.
3. MR Natural White willow bark extract specifications:
Salicin HPLC10%-98%
4. Basic physical and chemical properties of White willow bark extract powder
| Product Name: White Willow Bark P.E. | Origin of Material: China | |
| Latin Name: Salix alba L | Part Used: Bark | |
| ANALYSIS | SPECIFICATION | Remark |
| Appearance | Yellow brown to white fine powder | Visual |
| Odor | Characteristic | Organoleptic |
| Tasted | Characteristic | Organoleptic |
| Assay (Salicin) | 15%-98% | HPLC |
| Sieve Analysis | 100% pass 80 mesh | 80mesh |
| Loss on Drying | 5% Max. | CP2015 |
| Extract Solvent | Ethanol & Water | |
| Residual Solvents | 0.05% Max. | GC |
| Heavy Metal | 10ppm Max | AAS |
| Pb | 3ppm Max | AAS |
| As | 1ppm Max | AAS |
| Hg | 0.1ppm Max | AAS |
| Cd | 1ppm Max | AAS |
| Microbiology | ||
| Total Plate Count | 10000cfu/g Max | CP2015 |
| Yeast & Mold | 100cfu/g Max | CP2015 |
| E.Coli | Negative | CP2015 |
| Salmonella | Negative | CP2015 |
| Storage: | In cool & dry place. Keep away from strong light and heat. | |
| Shelf life: | 3 years when properly stored. |
5. Manufacturing Flow Chart of White willow bark extract
Raw material → ethanol extraction → concentration → extractum → solvent extraction → extraction liquid concentration → extract → spray drying → powder
6. White willow bark extract Powder benefits
(1). Treat fever, colds and infections
As “natural aspirin”, salicin is used to treat mild fever, colds, infections (influenza), acute and chronic rheumatic discomfort, headaches and pain caused by inflammation. Aspirin (acetylsalicylic acid), as a synthetic substitute for salicin, has potentially dangerous gastrointestinal side effects. As its natural configuration, salicin can pass through the gastrointestinal system harmlessly and be converted into salicylic acid in the blood and liver. The conversion process takes several hours, so the result will not be immediately felt by the body, but the general effect will last for several hours.
(2). Relieve arthritis pain and back pain
Salicin is believed to be the source of white willow bark’s ability to fight inflammation and relieve pain. The analgesic ability of white willow bark usually takes effect more slowly but lasts longer than ordinary aspirin products. An experiment found that a class of herbal compound products containing 100ng salicin can effectively improve the analgesic ability of arthritis patients after two months of continuous consumption. Another trial found that intake of 1360mg of white willow bark extract (containing 240mg of salicin) daily for two weeks can be more effective in treating joint pain and/or arthritis. Using high-dose white willow bark extract may also help relieve back pain. A four-week test found that white willow bark extract containing 240 mg of salicin can effectively reduce the deterioration of back pain.
7. Dosage of White willow bark extract Powder
The general recommended intake of salicin is 60-120mg per day. However, recent studies have shown that higher intakes such as 240 mg per day may be more effective in treating pain.
8. White willow bark extract Powder side effects
When taken by mouth: Willow bark is POSSIBLY SAFE for most adults when taken for up to 12 weeks. It may cause headaches, stomach upset, and digestive system upset. It can also cause itching, rash, and allergic reactions, particularly in people allergic to aspirin.(https://www.webmd.com/vitamins/ai/ingredientmono-955/willow-bark#)
9. Safety of White willow bark extract Powder
Similar to aspirin, some people may experience gastrointestinal discomfort after taking salicin. Although such symptoms are more like aspirin rather than white willow bark extract, people with ulcers and gastritis should also avoid the drug. Moreover, like aspirin, white willow bark extract cannot be used to treat fever in children.
10. White willow bark extract Powder related researches
a. Pain Relief with a Proprietary Extract of Willow Bark in Rheumatology. An Open Trial., link: https://www.karger.com/Article/Pdf/286250
b. Willow bark or Aspirin? – An herbal pain reliever, link: https://www.healthyhildegard.com/willow-bark/
c. Willow bark safety and efficacy, link: http://www.willow-bark.com/willow-bark-safety-and-efficacy/
d. Efficacy and Tolerability of a Standardized Willow Bark Extract in Patients with Osteoarthritis: Randomized Placebo-controlled,Double Blind Clinical Trial, link: http://thishel.ps/PDF_Studies/165.pdf
11. White willow bark extract Powder package & Notes for shipping
25kgs/drum, inner by double plastic bags.
N.W./G.W.: 25kgs/28kgs
Drum size: 35cm(diameter)*51cm(height)
Small order is accepted too. Such like 1kg/5kgs/10kgs.
Package for small quantity is by aluminium foil bag and carton box.
For 1-50kg, we suggest shipping by courier, such as DHL, fedex. HS code we use is 2932999099.
For 50-300kgs, we suggest shipping by air. HS code we use is 2932999099/1302199099.
For more than 300kgs, we suggest shipping by sea. HS code we use is 1302199099.
12. Q & A for White willow bark extract Powder
Q: What are the benefits of white willow bark?
A: Willow bark, the bark of several varieties of willow tree, has been used for centuries as a pain reliever. The active ingredient in the medicine made from willow bark is called salicin. Some people use willow bark as an alternative to aspirin, particularly those that experience chronic headaches or back pain.
Q: Is it safe to take white willow bark daily?
A: There are no guidelines directing the appropriate use of willow bark. Generally speaking, oral doses of up to 400 mg per day are considered safe and effective for the short-term treatment of muscle or joint pain.
Q: Does white willow bark raise blood pressure?
A: Common side-effects include: stomach upsets. increased blood pressure.
Q: Is Willow Bark Extract bad for skin?
A: Willow Bark Extract is good for your skin because of its beneficial exfoliant and anti-inflammatory qualities. This extract is an effective ingredient in many types of topical skin care products.
Q: Is Willow bark better than aspirin?
A: The multi-component active principle of willow bark provides a broader mechanism of action than aspirin and is devoid of serious adverse events. In contrast to synthetic aspirin, willow bark does not damage the gastrointestinal mucosa. An extract dose with 240 mg salicin had no major impact on blood clotting.
Q: How long does white willow bark stay in your system?
A: A proprietary extract of willow bark, Assalix, was standardized to contain 15% salicin. The pharmacokinetics of salicylic acid delivered from willow bark have been studied, and plasma half-life is approximately 2.5 hours.
Q: Is Willow bark the same as salicylic acid?
A: Willow bark contains salicin, a substance that when taken orally is converted by the digestive process to salicylic acid (BHA,) which is why it is claimed to work the same as a BHA exfoliant skin care products.
13.Supplements containing White willow bark extract Powder
Nature’s Answer White Willow | Promotes Overall Health & Well-Being
The Vitamin Shoppe White Willow Bark 400MG, for Temporary Discomfort (100 Capsules)
Eclectic White Willow Feverfew Freeze Dried Vegetables, Blue, 90 Count
Extra Strength White Willow Bark (PE 15% Salicin) – 450 mg(Brand: TerraVita)
Now Foods, Willow Bark Extract, 400 mg, 100 Veg Capsules
14. Where you can buy White willow bark extract Powder?
You can purchase White willow bark extract Powder from China.
MR Natural is a professional manufacturer for White willow bark extract since 2006.
We supply it to USA, Europe.
For White willow bark extract supplements, YOU can buy from Walmart, Amazon.
