This is exactly what its name says.
Apply to the hair and comb. Most detanglers do not get rinsed out.
Some conditioners also help with detangling hair but only work used in wet hair after shampoo.
Some detanglers can be used in dry hair as a spray.
To detangle dread locks dont wet the hair. Spray a detangler and start from the end of the dread towards the head.If you dont have a detangler use baby oil at the end of each dread lock.