Crystallization in Cream - Chemists Corner

Formulating

Crystallization in Cream

Posted by Sarah on July 13, 2014 at 7:54 pm

Hi Everyone,

I have formulated a very basic cream for a very particular customer. They have noticed some crystallization around the thread of the sample pot. The sample is from September 2013. My retained samples do not show any signs of crystallization.

The formula is as follows:

Stearic Acid 4.50%

Cetyl Alcohol 3.50%

Glyceryl Stearate & PEG-100 Stearate 2.00%

Isopropyl Myristate 1.00%

Lanolin 1.00%

Prunus Amygdalus Dulcis (Almond) Oil 1.00%

Aqua (Water) 84.64%

Tetrasodium EDTA 0.10%

Cyclopentasiloxane & Cyclotetrasiloxane & Dimethiconol 0.75%

Caprylhydroxamic Acid & Phenoxyethanol & Methylpropanediol 0.80%

Does anyone out there have any insight as to what could be causing this? Any advice would be gratefully appreciated

Sarah

DavidW replied 10 years, 5 months ago 2 Members · 2 Replies
2 Replies

DavidW

Member
July 16, 2014 at 10:57 pm

You made a sample for them over a year ago and now they are contacting you to tell you this? You have no idea how many times they opened and closed this or what conditions their sample was held in. Too many variables to tell. Can they take a good, close, clear picture to send to you that you can post? Crystallization to them may actually be something else. Have you seen it?
Sarah

Member
July 20, 2014 at 4:58 pm

Hi David,

This has been an incredibly painful project - it has been ongoing for more than three and a half years! Communication is not the customer’s strong point.

I have decided to completely reformulate (again) - luckily I managed to stop the artwork from going to print in time.

Garrrgh

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