Please NoteCastor oil pack wrap is an easy and effective natural therapy that you can do on a regular basis to improve your lymphatic system and enhance overall health. You can wear it for 30 mins to 1 hour per day to get a better result and replace the pack every 3-4 months as recommended. To wash the wrap please soak it in soap water for a couple of hours then hand wash it and hang to dryProfessional Thyroid Castor Oil Neck WrapThese castor oil packs inner layer is high-quality bamboo cotton which is Soft, Skin-friendly and Hypoallergenic. The outer 2 layer is waterproof PUL fabric material, which prevents castor oil from leaking well, keeping you away from castor oil stainsWork Well in NaturopathyDeveloped in clinical practice, castor oil (Castor Oil sold separately) is beneficial to promoting blood circulation, relieving muscle pain and improving life. Reduce inflammation and relax the body to get better sleep. Castor oil package can maximize the contact between skin and castor oil, and improve the utilization rate of castor oilImprove Your Body Anytime, AnywhereCaster oil packs adopt streamline ergonomic design and soft organic cotton flannel material which helps user feel comfortable and helps the castor oil absorbed into your skin. You can wear it moving around, doing chores or other activitiesEasy to Wear, Comfort FitOur thyroid castor oil pack fits for neck circumference between 13 inches and 17 inches. Design with hook & loop fastener, provides a stable hold that won't shift, easy to wear and easy to adjust suitable length for your neck