Glycerine combined with alcohol to form a syrupy humectant. When used in make-up, it helps the foundation adhere to the skin. Propylene glycol is one very commonly used synthetic glycol. Some others are ethylene glycol, diethylene glycol, and carbitol. Most glycols are synthetic and toxic.
A diol is a chemical compound containing two hydroxyl groups (−OH groups). An aliphatic diol is also called a glycol. This pairing of functional groups is pervasive, and many subcategories have been identified.
The most common industrial diol is ethylene glycol. Examples of diols in which the hydroxyl functional groups are more widely separated include 1,4-butanediol HO−(CH2)4−OH and propylene-1,3-diol, or beta propylene glycol, HO−CH2−CH2−CH2−OH.


Firming Facial Créme with Alpha Lipoic Acid + Vitamin C Ester + DMAE
High Potency Vitamin C Serum
Eye Complex Firming Creme
Sea Salt Cleansing Gel
Eye Gelee Concentrate
Rosewater Facial Spray
Multi-Factor Brightening Créme
Calming Renewal Serum
Nasolabial Fold+ Multi-Peptide Complex
Calming Rejuvenation Creme