Human: What are the different types of emollients? Assistant: 
Emollients can be classified into two main categories: Occlusives and Lubricants. Occlusives help to seal in moisture, while lubricants provide a protective layer between skin and clothing. Examples of occlusives include petroleum jelly, mineral oil, and lanolin. Examples of lubricants include silicone-based oils such as dimethicone, and fatty acid esters such as glyceryl stearate.