CAPB is a surfactant and foam enhancer that is present in many personal care products. It combines a mixture of fatty acids that come from coconut oil with propylene glycol, which is a synthetic compound.

Manufacturers use CAPB in products that clean the skin and hair, due to its ability to lift and remove oil. Some companies use CAPB as a replacement for Sodium Lauryl Sulfate (SLS), which is also a surfactant and foaming agent. Some people find SLS a harsh and drying surfactant, whereas CAPB can be milder.

Uses and properties of CAPB

CAPB has several properties  that make it useful in various personal care and household products:

• Surfactant: CAPB allows water and oil — two substances that usually repel each other — to interact. This makes it possible to remove oil with water, lifting it from the skin or hair.
• Foam enhancer: In shampoos and body washes, CAPB can help create a rich lather when it comes into contact with water.
• Thickening: CAPB adds viscosity to products, making them thicker and creamier. This is useful in products such as hair conditioners, as it makes them less likely to drip.

Products that can contain CAPB

Some products that may contain CAPB include:

• body wash
• facial cleanser
• shampoo
• conditioner
• hair styling products
• hair coloring kits
• shaving cream
• mouthwash
• makeup remover
• liquid soap
• toothpaste
• household cleaners
• laundry detergent