Herbal regularity*: Cascara Sagrada Bark (rhamnus purshiana), which means "sacred bark", has a long history of use by traditional herbalists to promote bowel regularity.*Promotes bowel function*: take 1 capsule at bedtime with a full glass of water. Certifications/Classifications: Kosher, Non-GMO Project Verified, Keto friendly, soy Free, Vegan/Vegetarian, nut Free, made without gluten, corn free, Dairy Free, egg free. Gmp quality Assured: NPA AAA-rated GMP certification means that every aspect of the now manufacturing process has been examined, including our laboratory/testing methods (for stability, potency, and product formulation). Packaged in the USA by a family owned and operated Company since 1968. During the summer months products may arrive warm but Amazon stores and ships products in accordance with manufacturers' recommendations, when provided.