Kare-N-Herbs Tranquility Kare. Description: Fast-acting, Natural, Non-Toxic Withania somnifera. Reduces Anxiety and Insomnia. Tranquility Kare - Pronounced normalizing effect on sleep disorders, and balances related emotional and physical problems, such as sluggishness, anxiousness, weariness and irritability. Contains the herbal plant Withania somnifera, also known as Ashwagandha. Disclaimer These statements have not been evaluated by the FDA. These products are not intended to diagnose, treat, cure, or prevent any disease.