Sodium lauroyl sarcosinate (INCI), also known as sarcosyl, is a negatively-charged surfactant that's used as a foaming and cleansing agent in many personal care products, such as shampoos, toothpaste, shaving foams, and foam washes. It's derived from sarcosine, a natural amino acid found in the human body and other biological materials. Sodium lauroyl sarcosinate is considered safe and effective for cosmetic use. It has several advantages over other surfactants, such as being gentle on the skin, enhancing the shine and body of damaged hair, and being environmentally friendly. It can be obtained from natural sources, such as coconut oil, or synthesized from fatty acids and sarcosine.

Uses for sodium lauroyl sarcosinate: 

Hair care

It's used in shampoos and conditioners to enhance the shine and body of damaged hair. It's most effective when used in cleansing products. 

Other personal care products

It's used in shaving foams, toothpaste, and foam washes. It produces a generous amount of foam that makes the application and feel of the products better. 

Sodium lauroyl sarcosinate is considered to be safe and effective for cosmetic use. Safety assessments have confirmed that it's non-irritating and non-sensitizing when applied to human skin in amounts up to 15% in rinse-off and 5% in leave-on products. It's also environmentally friendly.