Health Embassy Only best quality product Cramp Bark ( Viburnum opulus ) Health Embassy 50 g = 1.76 oz 100 g = 3.53 oz Cramp Bark is a plant that grows in North America. Other common names of that plant are guelder-rose, guelder rose, water elder, cramp bark, snowball tree, & European cranberrybush. A tea can be made by pouring a teacup (200 ml) of boiling water over 1-2 tsp of Cramp Bark & allowing it to soak for 5 to 10 min. After this time strain it. Sources All descriptions come from professional literature & from the internet. Please visit our Etsy shop for more: https://www.etsy.com/uk/shop/HealthEmbassy?ref=seller-platform-mcnav This product description is for informational purposes only. It does not replace the consultation with a doctor & cannot be used as a medication or be a part of therapy. All decisions on this matter should be consulted with your doctor. Cramp Bark | Viburnum Opulus L Health Embassy 100% Natural Herbal Tea