Home Cosmetic Science Talk Formulating Which is best as a leave in conditioner?

  • OldPerry

    January 26, 2020 at 10:38 pm

    I’d say Polyquaternium-37. Although Dimethicone Copolyol or dimethicone would be even better.

    • Camel

      May 10, 2024 at 3:16 am

      @Perry44 Could I ask why you believe Polyquaternium-37 would be better than BTMS for a leave-on application? Is there any benefit to using both? Thank you!

      • Perry44

        May 10, 2024 at 10:04 am

        This is an old discussion! But I say PQ-37 is better for leave in because you need to use less of it to get a reasonable effect. You could use 0.2% of PQ-37 that would give you the same effect as say 2% BTMS. So, this would result in hair that feels less weighed down.

        • Camel

          May 10, 2024 at 8:12 pm

          @Perry44 Thank you so much! There aren’t many discussions on the forum about this ingredient. I didn’t realize it was so effective at such a low level; I was trialing 0.5% PQ-37 with 0.5% active BTMS and 1% dimethicone for a leave-in.

          If I omit the BTMS, do you think the PQ-37 and some cetearyl alcohol would be able to keep the dimethicone bonded? The only other components are preservative, fragrance, and HEC.

  • Oladoo

    January 27, 2020 at 6:56 am

    Thank you Perry

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