• Formulating

  Increasing pH of a Carbomer gel without increasing viscosity

  Posted by AVisotsky on March 3, 2021 at 6:31 pm

  Hi folks,
  I’m curious if there is a way to increase the pH of my gel (up to 7.0) without increasing viscosity? At this point, I get pH 5.0-5.5 at a max. 

  	Aqua	Water	0.71
  	Witch Hazel Extract	Hamamelis Virginiana, Benzoic Acid	0.3
  	Carbomer	Carbomer Ultrez 10	0.003
  	Natcide	Parfum	0.007
  	Sodium Hydroxide (10% Solution)	Sodium Hydroxide	qs

  AVisotsky replied 3 years, 2 months ago 3 Members · 4 Replies
• 4 Replies

• 

  Pharma

  Member

  March 3, 2021 at 8:38 pm

  If viscosity increases, drop the amount of carbomer .

• 

  AVisotsky

  Member

  March 4, 2021 at 12:42 am

  LOL. Good point. Back to the lab!

• 

  Pattsi

  Member

  March 4, 2021 at 10:19 am

  My suggestion will sounds silly but throw in some salt to break the network.

• 

  AVisotsky

  Member

  March 4, 2021 at 9:15 pm

  Thank you, Pattsi. I might try that

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