Propylene glycol is mainly used as a moisturizing agent, solvent and solubilizer in skin care products.
1. Propylene glycol is added to skin care products and is generally used in lotions and essences. Because it is a polyol type, it is a small molecule moisturizing ingredient, which can lock in moisture and play a moisturizing role, but its water absorption is relatively weak and moisturizing. General effect.
2. 1,2-Propanediol has lower cost, better antifreeze effect and certain antibacterial effect; 1,3-Propanediol is relatively less irritating to the skin and is more natural and safe, but its cost is higher. Generally, most low-end skin care products contain 1 or 2 propylene glycol. Remember to check the ingredient list when purchasing.
3.Propylene glycol face masks are harmless to the skin.
4. 45% propylene glycol is used as the chemical raw material for producing unsaturated polyester resin. The pharmaceutical grade propylene glycol is 1,2-propylene glycol, which is a colorless and transparent viscous liquid, odorless, slightly sweet in taste and hygroscopic.