Function:

Need Training?

Build a solid foundation in science, formulation and product development—find out more!

Most Popular in:

Formulating Aids

132

Polymers in Personal Care

44

Eco-solubilizer for Essential Oils and Fragrances

42

Eco-friendly, Nonflammable Liquified Gas Propellant

37

PEG-free Solubilizer for Lipophilic Substances

35

Glyceryl Stearate Citrate Emulsifier Derived From Rapeseed

32

Boron Nitride Functional Fillers for Cosmetics

26

Ingredient Profile: Distearyldimethylammonium Chloride

24

Zanthoxylum alatum Extract Inhibits Skin Sensitivity

20

Naturally-derived O/W Emulsifier for Skin Care

19

PIT Versus PIF for the Rational Formulation of Emulsions

Excerpt Only

Email This Item! Print This Item!

Hydrolysis-Resistant Esters

By: John A. Imperante, Phoenix Chemical
Posted: December 13, 2005, from the February 2005 issue of Cosmetics & Toiletries.

Purchase This Article

  • From Cosmetics & Toiletries
  • February 2005 issue, pg 51
  • 6 pages

Article Keywords:

  • esters
  • hydrolytic instability of esters
  • non-hydrolyzable esters
  • Saponification Value
  • testing

Available Formats:

  • Adobe PDF for download
  • Printed copies mailed to you

From $9 an article

Hydrolytic instability of esters causes problems when esters are used in cosmetic formulations. One way around these problems is to use certain non-hydrolyzable esters that are synthesized by a diol reaction sequence. This sequence, two examples of the resulting non-hydrolyzable esters and some formulations using them are presented in this article.

Esters are a class of compounds well known to the organic chemist and to the cosmetic chemist. There are a number of sub-classes of esters that differ both in functionality and structure.  These include simple fatty-fatty esters, complex esters, polyesters, Guerbet esters, and water-soluble esters. Each type provides specific functionality in cosmetic formulations. For example, fatty-fatty esters are generally oil soluble and useful in the oil phase of creams and lotions. Complex esters – such as trioctyldodecyl citrate, Guerbet esters and polymeric esters – serve as pigment wetting and dispersing agents and in makeup and lipstick for substantivity, transfer resistance and moisturization. 

This is only an excerpt of the full article that appeared in Cosmetics & Toiletries, but you can purchase the full-text version.