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Willow Purchase & Information

Alternative Names

Basket Willow, Bay Willow, Black Willow, Black Willowbark, Black Willow Extract, Brittle Willow, Corteza de Sauce, Crack Willow, Daphne Willow, Écorce de Saule, Écorce de Saule Blanc, European Willow, European Willow Bark, Extrait d'Écorce de Saule, Extrait d'Écorce de Saule Blanc, Extrait de Saule, Extrait de Saule Blanc, Knackweide, Laurel Willow, Lorbeerweide, Organic Willow, Osier Blanc, Osier Rouge, Purple Willow, Pupurweide, Purple Osier, Purple Osier Willow, Pussy Willow, Reifweide, Salicis Cortex, Saule, Saule Argenté, Saule Blanc, Saule Commun, Saule des Viviers, Saule Discolore, Saule Fragile, Saule Noir, Saule Pourpre, Silberweide, Violet Willow, Weidenrinde, White Willow, White Willow Bark, White Willow Extract, Willow Bark Extract

Scientific Name

Salix Alba

Why Do People Use Willow?

Oral preparations of Salix alba (Willow), like willow powder, are used for the treatment of pain, headache, osteoarthritis, myalgia, gouty arthritis, dysmenorrhea, rheumatoid arthritis (RA), ankylosing spondylitis and gout. It is also used for common cold, fever, swine flu, influenza and to reduce weight.

Is It Safe To Use?

Possibly Safe - Oral, appropriate and short-term consumption of willow bark is thought to be safe and no severe side have effect reported. Consumption of willow bark for up to 12 weeks is considered safe. Possibly Unsafe in Children - Oral consumption of willow powder may lead to viral infections in infants. Aspirin and Salicylic acid are contraindicated in children with some severe viral infections. Not advised in Pregnancy - Due to insufficient and unreliable information, health advisors do not recommend oral or topical consumption of willow during pregnancy. Possibly Unsafe In Lactation. Orally used willow bark thought to be unsafe for breastfeeding females. This herb consist of salicylates, which are excreted in the breast milk and may have adverse effects on breast-fed children.

How Effective Is Willow?

Willow powder maybe effective for following conditions: • Back pain There are insufficient information available about usage of Salix alba for following conditions: • Obesity • Osteoarthritis • Rheumatoid arthritis (RA)

How Willow Works?

Salix alba is the bark of salix tree species, for example, the white willow. Willow bark includes ingredients like tannins, salicylates and flavonoids. The essential constituent of willow bark is thought to be salicin. Salicin is metabolized to salicyl alcohol and after that to salicylic acid. From that point, digestion is the same as aspirin. Extract of ethanolic of willow bark appears to restrain cyclooxygenase (COX)-2 dependent prostaglandin discharges, but it doesn't appear to specifically influence COX-2 or COX-1 action. Willow bark constituents, other than salicin, may have antioxidant and lipoxygenase-inhibiting impacts that could add to its analgesic activity. Furthermore, they may avert the discharge of cytokine and prostaglandin. Some clinical studies suggest that amplified treatment with usage of willow bark may be vital for therapeutic impacts. According to initial data, extract of willow bark may have anti-inflammatory, analgesic and antipyretic activities. Willow bark inhibits platelet aggregation but to a lesser degree than aspirin. Willow bark is included in weight reduction supplements. According to some clinical experiments, aspirin or willow bark and caffeine may act synergistically with ephedrine for weight reduction by repressing prostaglandin, which increases the discharge of norepinephrine. But the aspirin and willow bark have no thermogenic impact when given alone.

What Are The Side Effects /Adverse Reactions of Willow?

Oral usage of willow bark extract can result in gastrointestinal adverse effects, but these side effects are less as compared to those caused by NSAIDs. Oral consumption of willow bark may also result in body rashes and itching problems, which further include severe allergic side effects such as anaphylaxis, particularly in individuals allergic to aspirin. Salicylates can inhibit prostaglandins, which can lessen the flow of renal blood. Salicin can also cause renal papillary necrosis. The toxicity risk becomes greater with chronic use and high acute doses.

How Willow Interacts With Other Herbs and Supplements?

Herbs and Supplements with Antiplatelet or Anticoagulant Effects - Combination of herbs that have anticoagulant / antiplatelet effects and willow powder may enhance the potential risks of bleeding in some cases. Herbs in this category are danshen, clove, ginger, garlic, ginseng, ginkgo, red clover, meadowsweet and others.

How Willow Interacts With Drugs?

Antiplatelet or Anticoagulant Drugs - Interaction rating between willow bark and drugs with Antiplatelet or Anticoagulant properties is major, so avoid using this blend. Because of decreased platelet aggregation, this may enhance the potential risks of bleeding. There is less antiplatelet effects in Salix alba as compared to aspirin. Drugs included in this category are clopidogrel (Plavix), enoxaparin (Lovenox), dalteparin (Fragmin), warfarin (Coumadin), aspirin, ticlopidine (Ticlid), heparin and others. Aspirin - Interaction rating between willow powder and drugs containing aspirin is moderate, so be careful about using this mixture. Willow consist of of salicin, which is a plant salicylate. Herbs with Salicylate Properties - This combination may potentiate salicylate side effects. Herbs with Salicylate like impacts include black haw, aspen bark, meadowsweet and poplar as well. Salsalate (Disalcid) - Interaction rating between willow powder and drugs containing Salsalate (Disalcid) properties is moderate, so use this combination after proper advice from a physician. Willow bark consists of salicin, a plant salicylate. Willow bark may also have an additive effect when used with other drugs containing salicylate, for example salsalate.

How Willow Interacts With Foods?

Not known.

How Willow Interacts With Lab Tests?

Creatinine - Salicin can result in increase of serum creatinine without influencing renal function. Salicylates can increase creatine without effecting glomerular filtration rate (GFR).

How Willow Interacts With Diseases and Conditions?

Kidney Dysfunction - Salicin may decrease renal blood flow in some individuals. Chronic consumption of high doses may cause to renal failure in predisposed individuals. Individuals suffering from compromised renal function should avoid using willow powder. Salicylate Precautions Use cautiously or avoid in people suffering from asthma, aspirin hypersensitivity, diabetes, active peptic ulcer disease, hemophilia, gout, kidney or liver disease and hypoprothrombinemia. It may also use anaphylaxis. Surgery - There are antiplatelet effects by using Salix alba. Willow powder may cause over bleeding if used without caution. Patients should avoid using willow bark minimum two weeks before elective surgical procedures.

What Should Be the Dose/Administration of Willow?

ORAL To cure back pain, extract of willow bark containing 120 to 240 mg of salicin should be used every day. However excessive dosage of 240 mg may be effective.


Willow bark consists ofa number of species of willow tree such as Salix nigra (pussy willow or black willow), Salix alba (European willow or white willow), Salix purpurea (purple willow), Salix fragilis (crack willow) and others.

General Certificate of Analysis (COA)

Specification sheet links below are a standard copy of the COA less the batch or lot number and manufactures dates. Specification sheet can be dated and should only be considered as a general information. Please contact and request an up to date COA if needed for specific updated information before placing order by filling out the contact form with product name and SKU number. If ordering quantities of twenty five kilos or more contact for availability.


These statements have not been evaluated by the Food and Drug Administration. These products are not intended to diagnose, treat, cure or prevent any disease.

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