Cramp bark powder, derived from the dried bark of 
Viburnum opulus, is a traditional herbal remedy primarily used to alleviate muscle spasms, menstrual cramps, and tension. It is known for its antispasmodic properties, which can help relax smooth muscle tissue. The powder is versatile, often used in teas, capsules, or tinctures, and is valued for reducing pain associated with PMS and muscle strain.