Home Cosmetic Science Talk Formulating Max % at cool down phase

  • Max % at cool down phase

    Posted by formulatorterminator on April 25, 2024 at 7:26 pm

    What is the max % ingredients you wouldn’t exceed at the cool down phase? Is 10% pushing it? And is 5% a good rule of thumb? Assuming cool down phase consists mainly of heat sensitive ingredients such as hydrolysed protein, extracts in glycerin, and the usual vitamin E, 0.5% essential oil and preservative/s.

    Perry44 replied 3 weeks, 2 days ago 2 Members · 1 Reply
  • 1 Reply
  • Perry44

    April 26, 2024 at 9:25 am

    It really depends on the formula / emulsification system. 10% might be fine for some systems.
    In fact, we used to do what was called a “quench cooling” method with one of our hair conditioners. We would add 25% cold water after creating the emulsion. This rapidly cooled the system so instead of taking 8 hours to make a batch we could do it in 2 hours. And we didn’t have any stability problems in that formula.

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