These are the kind of words used by the mysterious eponymous corporation at the heart of 2024’s most controversial horror film “The Substance” to describe the product’s effects on their customers. A dangerously underground substance, the drug comes into the attention of recently fired actress Elisabeth Sparkle (Demi Moore) who just lost her job as main host of an aerobics program for reaching the age of 50, a deliberate move by the network (manifested by a rather quirky performance by Dennis Quaid playing the unsubtly named “Harvey”) to grab much younger, “hotter” talent.