• Formulating

  Separation testing

  Posted by mikeyd on February 27, 2015 at 2:19 am

  What is the best way to test hair products for potential separation issues? 

  gangarani replied 9 years, 10 months ago 6 Members · 9 Replies
• 9 Replies

• 

  Iaskedbetter

  Member

  February 27, 2015 at 2:43 pm

  You will need to be more specific. “Hair products” encompasses a wide variety of formula types.

• 

  mikeyd

  Member

  March 2, 2015 at 5:15 am

  Mainly just shampoo’s, conditioners and leave in treatments

• 

  gangarani

  Member

  March 2, 2015 at 7:19 am

  can anybody suggest the  ratio of emulsifier :oil ratio in o/w.if the emulsifier is soap or other common emulsifiers like cetostearyl or GMS

• 

  Bobzchemist

  Member

  March 2, 2015 at 2:57 pm

  @Gangarani, if you have a new question, please start a new discussion. We try not to answer unrelated questions in an existing topic.

• 

  David

  Member

  March 2, 2015 at 8:06 pm

  “best” depends on at least three factors:

  time

  type of product

  equipment you can afford
• 

  Iaskedbetter

  Member

  March 3, 2015 at 11:01 pm

  @mikeyd Most stability testing is conducted by placing samples into varying temperature conditions. 45C, Room Temp, Refrigerator/5C, and Freeze/Thaw. You can test emulsions by centrifuging them as well.

• 

  mikeyd

  Member

  March 4, 2015 at 2:02 am

  Thanks @Iaskedbetter

• 

  Kirk

  Member

  March 4, 2015 at 2:41 am

  You can also use a centrifuge to see if separation will occur. This is specially useful for conditioners (rinse off and leave on)

• 

  gangarani

  Member

  March 4, 2015 at 7:05 am

  @ bobzhemist so sorry i will start a new discussion

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