Home Cosmetic Science Talk Formulating Pq10 vs pq7 vs cationic guar for hair combing

  • Pq10 vs pq7 vs cationic guar for hair combing

    Posted by Abdullah on November 21, 2020 at 12:47 pm

    In a Shampoo with SLES, CAPB and APG surfactants, which one of these conditioning agent is better for wet and dry combing of hair?

    Polyquaternium 10 
    Polyquaternium 7
    Guar hydroxypropyltrimonium chloride

    Abdullah replied 3 years, 7 months ago 3 Members · 5 Replies
  • 5 Replies
  • ketchito

    Member
    November 21, 2020 at 2:27 pm

    @Abdullah While the three of them work better at reducing charge density which is more perceivable at static reduction under dry conditions, PQ-10 and Guar HPTC are modified polysaccharides that form a rigid film on hair, while PQ-7 being a copolymer, has more degree of freedom. What I mean is that even though the three are more for dry effect on hair, PQ-7 has a little influence on wet combing as well. Nevertheless, silicones are superior on both wet and dry combing, and can be used alongside (except cationic silicones) or replacing them.

  • Abdullah

    Member
    November 23, 2020 at 1:27 am

    @ketchito and what is a good silicone for this purpose?
    I am going to purchase some 5 cst dimethicone for lotion. Is it good in Shampoo too? At what percentage? 

  • ketchito

    Member
    November 23, 2020 at 2:49 pm

    @Abdullah It depends on your formulation. If you have a stabilizer (like some Carbopol), then you can use fluid Dimethicone (I’d go for a 350 or 1000 cst viscosity). But if not, a Dimethiconol emulsion can also perform well (only, the deposit will be less). For instance, DC 1784 or 1785 can be used.

  • OldPerry

    Member
    November 24, 2020 at 1:29 am

    I’ve never been able to demonstrate a difference.  It’s one of those things you have to test yourself in your system.

  • Abdullah

    Member
    November 24, 2020 at 2:26 am

    Thank you all

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