Types of Ingredients in Moisturizers for Topical Skin Care

Barrier repair

• Ceramides
• Cholesterol
• Fatty acids

Humectants

• α-Hydroxy acids
• Glycerin
• Hyaluronic acid
• Propylene glycol
• Sodium hyaluronate
• Sorbitol
• Sugars
• Urea  

Occlusives

• Petrolatum
• Mineral oil 
• Paraffin
• Squalene
• Dimethicone
• Soybean oil
• Grapeseed oil
• Propylene glycol
• Lanolin
• Beeswax

References :
Fitzpatrick's Dermatology in General Medicine 7th Edition