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2. Propylene glycol - Wikipedia

   en.wikipedia.org/wiki/Propylene_glycol

   Estimates on the prevalence of propylene glycol allergy range from 0.8% (10% propylene glycol in aqueous solution) to 3.5% (30% propylene glycol in aqueous solution). [ 70 ] [ 71 ] [ 72 ] The North American Contact Dermatitis Group (NACDG) data from 1996 to 2006 showed that the most common site for propylene glycol contact dermatitis was the ...

3. Humectant - Wikipedia

   en.wikipedia.org/wiki/Humectant

   Humectants used in cosmetics include triethylene glycol, [16] tripropylene glycol, [17] propylene glycol, and PPGs. Other popular humectants in cosmetics include glycerin, sorbitol (sugar alcohol), hexylene and butylene glycol, urea, and collagen. [18]

4. Polypropylene glycol - Wikipedia

   en.wikipedia.org/wiki/Polypropylene_glycol

   Polypropylene glycol is produced by ring-opening polymerization of propylene oxide. The initiator is an alcohol and the catalyst a base, usually potassium hydroxide. When the initiator is ethylene glycol or water the polymer is linear. With a multifunctional initiator like glycerine, pentaerythritol or sorbitol the polymer branches out ...

5. Propylene carbonate - Wikipedia

   en.wikipedia.org/wiki/Propylene_carbonate

   Propylene carbonate (often abbreviated PC) is an organic compound with the formula C 4 H 6 O 3. It is a cyclic carbonate ester derived from propylene glycol. [4] This colorless and odorless liquid is useful as a polar, aprotic solvent. [5] Propylene carbonate is chiral, but is used as the racemic mixture in most contexts.

6. Glycol ethers - Wikipedia

   en.wikipedia.org/wiki/Glycol_ethers

   Glycol ethers are designated "E-series" or "P-series" for those made from ethylene oxide or propylene oxide, respectively.Typically, E-series glycol ethers are found in pharmaceuticals, sunscreens, cosmetics, inks, dyes and water-based paints, while P-series glycol ethers are used in degreasers, cleaners, aerosol paints and adhesives.

7. Cosolvent - Wikipedia

   en.wikipedia.org/wiki/Cosolvent

   Common cosolvents for this purpose are ethanol, propylene glycol, glycerine, glycofural, and polyethylene glycols. [7] The effect of cosolvency on drug solubilization can be great, as evidenced by a 2009 study in which researchers from Panjab University showed the solubility of various anti-diabetic drugs increase by more than 500 times by use ...