DEVACURL Heaven in Hair® Moisturizing Deep Conditioner is new for ultimate Curl Flexibility. Our formulas are dermatologist co-developed, backed by science and stylist approved. Feels like heaven. This deep conditioner with a moisture preserving blend eases detangling and provides dry curls with hydration, definition, bounce, frizz control and shine. Moisture preserving blend eases detangling and provides dry curls with hydration, definition, bounce, frizz control and shine.