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Cetrimonium chloride in shampoo
Hello!
Do you think Cetrimonium chloride is recommended to use in a 2 in 1 shampoo ? along with amodimethicone.
Thank you!! -
4 Replies
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No it is not recommended. But if it is part of a blend that you have to use then you dont have another option but using it.
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@Anna_Maria There’s a small window of opportunity of including CTC in a shampoo, even in the presence of SLES, bute you need to also use an amphoteric surfactant and at definite ratios. If you want to add CTC, I recommend you to test first your surfactant mixtures only, so you can see of there’s precipitation, or you manage to get a gel phase (the latter is what you want). Once you did that, you can start adding other ingredients.
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Thank you for your answer. But is there any specific reason for that ?
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@Anna_Maria cationic surfactants (CTC) and anionic surfactants (SLES) generally react with each other at most concentrations, forming a precipitate that doesn’t work neither as a detergent nor as a conditioning agent. There are specific ratios (high excess of anionic compared to cationic), structures (amidoamines don’t react so readily with anionics) and addition of co-surfactants (amphoterics for instance) that prevent precipitation and even show a synergistic effect when combined. But that would take a lot of trial and error without the required knowledge. You could search for some literature about this topic before, or simply avoid adding cationic surfactants in shampoos.
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