Butylene Glycol vs Poly - Glycerin-4
Butylene Glycol and Poly - Glycerin-4 are both draws in moisture ingredients. Butylene Glycol is found in 1031 products while Poly - Glycerin-4 appears in 1, making Butylene Glycol the more widely used option.
Butylene Glycol
Lightweight humectant and solvent
Poly - Glycerin-4
Draws in moisture