Esters: What the heck are Guerbet esters?

If you want to start at the very beginning of the series on esters, check out the home page for esters that will be updated with every post. If you want to learn more about combining emollients, check out the home page for that series.  Now that we’re finished the combining emollients series, I thought we could take...

This content is for Foundation, Formulation, and Innovation members only.
Subscribe
Already a member? Log in here

#alltheingredients: Isopropyl stearate (IPS) – an isopropyl ester

Isopropyl stearate (IPS) is an isopropyl ester related to isopropyl myristate (IPM), isopropyl palmitate (IPP), and isopropyl isostearate (IPIS). It’s a low viscosity, non-greasy, hydrophobic (water-hating) ester derived from stearic acid. To learn more about these isopropyl esters, check out this post on isomers and this post on comparing isopropyl esters! Click here to learn...

This content is for Foundation, Formulation, and Innovation members only.
Subscribe
Already a member? Log in here

#alltheingredients: Isopropyl palmitate (IPP) – an isopropyl ester, updated 2021

Isopropyl palmitate is related to isopropyl myristate (IPM), the difference being IPP is derived from palmitic fatty acid (C16) and IPM is derived from myristic fatty acid (C14). (Click here for the chemistry of esters!) Since we’re a little more familiar with IPM, we’ll end up contrasting and comparing the two at some point, so...

This content is for Foundation, Formulation, and Innovation members only.
Subscribe
Already a member? Log in here

Better crafting through chemistry: Esters – isopropyl myristate (IPM) – updated, 2021

A cup of isopropyl myristate. It's being poured from a bottle into a plastic shot glass that sits on a brown coffee table.

Original post from 2009!  If you’ve been following this blog for any length of time, you’ll know I’m a fan of isopropyl myristate or IPM. I use it primarily as a dry or astringent emollient to reduce the greasy feeling of other oils in a lotion or lotion bar. You can use it in large...

This content is for Foundation, Formulation, and Innovation members only.
Subscribe
Already a member? Log in here

Esters: Isopropyl esters

Isopropyl esters, like isopropyl myristate (IPM), are those based on isopropyl alcohol and a fatty acid. Esters are created by combining an alcohol and an acid, usually a fatty alcohol, like cetyl alcohol, Cetearyl alcohol, stearyl alcohol, or myristyl alcohol, and a fatty acid, like lauric acid, myristic acid, palmitic acid, and stearic acid. Isopropyl esters,...

This content is for Foundation, Formulation, and Innovation members only.
Subscribe
Already a member? Log in here