Rinse off Hair Conditioner

vjayvjay Member
edited January 2014 in Formulating

I am developing Rinse off Hair Conditioner.

I have seen some of the Bench mark formulary & net formulary so I have observed that generally in formulation  Stearamidopropyl dimethylamine are there , Lactic acid also are there.

I read the literature of Stearamidopropyl dimethylamine in that they have mentioned that for optimum solublity we have to use Acids like citric acid or lactic acid.

Stearamidopropyl dimethylamine is an effective conditioning agent after being neutralized with an acids like citric acid, Lactic acid or Glutamic acid.


I want to know that any particular reason that people are using only lactic acid ?




  • Chemist77Chemist77 Member, PCF student
    edited January 2014
    Except that Lactic acid molecule is smaller than Citric acid, I cant think of anything special. Though I hope that the mentors and experts can elucidate this point of yours. 
  • PerryPerry Administrator, Professional Chemist
    edited January 2014
    Yeah, there is nothing special about lactic acid.  In fact, we used citric acid in our conditioner formulas.  It's possible their purchasing agent got a good deal on lactic acid.
  • Chemist77Chemist77 Member, PCF student
    @Perry Good one
  • personally, I use lactic acid and not citric as LA comes in a liquid form and for me it is easier to add it to the product :)
  • MicroformulationMicroformulation Member, Professional Chemist
    @simona Standard technique is to use your Citric acid as a 50% Solution (usually pre-made in the lab) regardless so that offsets some of the advantage of Lactic acid. Citric acid is freely soluble.
    markfuller@microformulation.com Microformulation.com Microformulation Cosmetic Consulting provides Custom Formulations for both large Commercial accounts as well as smaller entrepreneurs. We can provide Naturally compliant Formulations under the NSF, NPA, Whole Foods and USDA Organic Certifications. BS.Pharm Albany College of Pharmacy, Union University.
  • Chemist77Chemist77 Member, PCF student
    So basically citric acid can be used which is freely available and freely soluble instead of lactic acid. Though as I see it that Lactic acid brings in more shine and pomp to the ingredient list.  :)
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