Glycerin

A plant derived humectant/Moisturizer (attracts water to itself and keep hair moisturized). 

Widely used in hair and skin care products. Glycerin is beneficial to all hair types especially for Curly, Wavy, Kinky or Frizzy hair. It also helpful for dry and damaged hair and may condition well enough to help hair breakage. 

Glycerin can also help moisturize dry scalp and lessen dandruff.