Hair Conditioner Stabilty - Chemists Corner

Formulating

Hair Conditioner Stabilty

Posted by chemist1 on February 17, 2015 at 4:33 pm

Is it typical for a hair conditioner to thicken considerably during the Freez/Thaw cycles of stability testing?

chemist1 replied 9 years, 2 months ago 3 Members · 4 Replies
4 Replies

belassi

Member
February 17, 2015 at 6:02 pm

If the viscosity has changed after temperature cycling, then the product isn’t stable in my opinion.
OldPerry

Member
February 17, 2015 at 6:43 pm

@Belassi is correct.

However, this was a pretty common occurrence with some of our conditioner formulas. Viscosity might double for some formulas. Mostly this didn’t happen but we still passed some formulas which did this but were otherwise stable.
belassi

Member
February 17, 2015 at 6:47 pm

I must say that I found conditioner development very difficult. A multitude of ingredients to deal with. I also had viscosity problems in development.
chemist1

Member
February 17, 2015 at 6:58 pm

So far all other stability conditions (25, 45 and 5C) are all fine.

It is good to hear that this is not that unusual.

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