1,2-Alkanediols for Cosmetic Preservation

Straight chain 1,2-alkanediols have been used for more than 15 years as moisturizers with multifunctional activities.1–3 In fact, pentylene glycol, also known as 1,2-pentanediol, was the first of the 1,2-alkanediols introduced to the cosmetic industry in the early 1990s. Since then, 1,2-hexanediol (see Figure 1a); caprylyl glycol also known as 1,2-octanediol (see Figure 1b); and more recently, decylene glycol or 1,2-decanediol, also have become available in the personal care industry.

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