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Is there any benefit to including several substantive conditioners in a formula?
I plan to make a low-foam facial cleanser. I understand humectants and other moisturizing ingredients won’t do a thing with rinse-off formulas, so I’ve turned to substantive conditioners to give the skin a “moisturized” after-feel. I’ve experimented several times and found a good starting ratio:
3% Polyquaternium-7
1.5% Lauryl Methyl Gluceth-10 Hydroxypropyldimonium Chloride
0.25% Guar Hydroxypropyltrimonium ChlorideI understand all these adsorb to the skin, but is there a benefit to including them all together? Also, is there a chance all these would build-up and turn comedogenic in the long run?
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6 Replies
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Too many cationics can leave a sticky afterfeel, despite it being a rinse off products.
I don’t think they’ll be comedogenic. If anything, cationics usually have some antibacterial activity. -
Having multiple cationic polymers is just overkill and most of it just runs down the drain. You could probably simplify and just put 4% Polyquat 7.
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Gunther said:Too many cationics can leave a sticky afterfeel, despite it being a rinse off products.
I don’t think they’ll be comedogenic. If anything, cationics usually have some antibacterial activity.Okay, that’s a relief to hear. Thanks!
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Perry said:Having multiple cationic polymers is just overkill and most of it just runs down the drain. You could probably simplify and just put 4% Polyquat 7.
I’ll try that. Thank you!
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I should add that 4% Polyquat 7 is overkill too. You probably won’t notice any difference between 4% and 1%.
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I’m initially including 3% PQ-7 since Swift mentioned a preference for that. But one of these days, I’ll have to experiment with different amounts of PQ-7. (Having a clingy toddler constantly barging into my home lab really limits my time!)
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