Check the listing for details. Swanson White Willow Bark Extract for Joints & Muscles, 500mg, 120 Caps. Condition: New. Listed at 7.89 USD. For an effective choice in joint and muscle comfort, choose Swanson White Willow Bark Extract. Throughout history, European herbalists have treasured white willow bark for its ability to work with the body's chemistry to facilitate joint and muscle comfort. Our 500 mg capsules are standardized to 15% salicin content.SUPPORTS JOINT & MUSCLE COMFORT: Standardized for 15% salicin, Swanson's easy to swallow white willow bark capsules provide the body with powerful nutrients to promote muscle and joint comfort with no stomach irritation!TRADITIONAL HERBAL SUPPLEMENT: Throughout history, European herbalists have treasured this powerful herb for its ability to work to help facilitate joint health and muscle comfort. Each capsule delivers 500mg of pure white willow bark.DOSAGE INSTRUCTIONS: Our wellness supplements offer everyday solutions for an enhanced mind, body, and home using only the purest ingredients. For best results, take one capsule one or two times per day with food and water.OUR QUALITY COMMITMENT: For nearly 50 years, Swanson has delivered science-backed health products worldwide. Each wellness supplement is made in our GMP certified facilities, and our purity and potency testing includes independent third-party labs.MONEY BACK GUARANTEE: At Swanson, we guarantee that every health product is made from the purest, freshest nutrients. If you aren't satisfied with any product(s) purchased within the last 30 days, return the unused portion to us for a full refund.