Glycerin vs Propylene Glycol Sodium Benzoate
Glycerin and Propylene Glycol Sodium Benzoate are both draws in moisture ingredients. Glycerin is found in 2427 products while Propylene Glycol Sodium Benzoate appears in 1, making Glycerin the more widely used option.
Glycerin
One of the most effective humectants
Propylene Glycol Sodium Benzoate
Glycol-based humectant