Butylene Glycol
Butylene Glycol is an organic alcohol-type solvent that is often used in various skincare products to add moisture and smoothness to your skin. And because of its solvent nature, it keeps other ingredients from clumping up once mixed into a solution.
Chemical name: 1.3-Butanediol
Used in: Shampoo, lotions, anti-aging serums, sunscreen, conditioner, moisturisers
Recommended usage level: 1-10%