RCT: Botanical blend Rhuleave-K controls hormones which impact menstrual cramp pain 31-Jul-2023 By Nikki Hancocks A botanical formula of turmeric (Curcuma longa L) and frankincense (Boswellia serrata) has demonstrated abilities to control the hormones that both sense pain and contract the uterus, thereby helping to alleviate menstrual cramps.