Hair Conditioner Stabilty

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

Comments

  • BelassiBelassi Member, PCF student
    edited February 2015
    If the viscosity has changed after temperature cycling, then the product isn't stable in my opinion.
    Cosmetic Brand Creation. Concept to name to IMPI search to logo and brand registration. In-house graphic design inc. Pantone specs. Cosmetic label and box design & graphics.
  • PerryPerry Administrator, Professional Chemist
    @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.
  • BelassiBelassi Member, PCF student
    I must say that I found conditioner development very difficult. A multitude of ingredients to deal with. I also had viscosity problems in development.
    Cosmetic Brand Creation. Concept to name to IMPI search to logo and brand registration. In-house graphic design inc. Pantone specs. Cosmetic label and box design & graphics.
  • 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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