Cosmetic Science Talk

Cosmetic Science discussion forum. For people who want for formulate cosmetics and get advice from other formulators around the world.
*** Click on one of the three Forum categories below to start a new discussion ***

Home Cosmetic Science Talk Formulating Surface tension questions

  • Surface tension questions

    Posted by chickenskin on January 18, 2017 at 1:48 pm

    As a formulator are we wanting high surface tension or low surface tension at the interface of an emulsion?  I would think low due to molecular packing?  Let me know what y’all think about this, I’m a little confused on this.  Thank you

    jeremien replied 6 years, 2 months ago 4 Members · 4 Replies
  • 4 Replies

    January 18, 2017 at 2:40 pm

    Low ST at oil//water interface but also take HLB into account for stability 

  • jeremien

    January 18, 2017 at 5:07 pm

    low surface tension for emulsion application (below 30
    mN.m-1) and ultralow for microemulsion application (<1 mN.m-1). The lower
    the surface/interfacial tension less energy you have to apply to your system to

  • johnb

    January 19, 2017 at 7:58 am

    Surface tension is only one of a number of parameters to be considered in emulsion stability.

  • jeremien

    January 19, 2017 at 9:29 am

    It’s not related to emulsion stability, but emulsion formation. Stability is related with zeta potential, steric stabilization, viscosity of your phases, etc.