Home Cosmetic Science Talk Formulating Leave In vs rinse out conditioner?

  • Leave In vs rinse out conditioner?

    Posted by DavidW on January 21, 2014 at 10:30 am

    I am wondering what you consider the major differences when it comes to formulation between a leave in & rinse out conditioner?

    Abdullah replied 2 years, 8 months ago 7 Members · 6 Replies
  • 6 Replies
  • MakingSkincare

    Member
    January 21, 2014 at 10:35 am
  • OldPerry

    Member
    January 21, 2014 at 7:38 pm

    The primary differences are these…

    1.  Leave-in - Contains a high level of humectants, very low level (or none) quats.  Lower level of most ingredients as you don’t need as much since it doesn’t get rinsed away.
    2.  Rinse-off - Contains a high level of Quats.  Not as much humectants since they aren’t really effective from a rinse off.  Higher level of silicone also.
    Perry, 44
  • Gustavo

    Member
    January 23, 2014 at 7:20 am
    I would focus the difference on the amount of cationic emulsifiers and humectants because some hair types require high amounts of oil content and silicone, etc.
  • ChemWizard

    Member
    February 4, 2014 at 11:10 pm

    Would an AHA peel be considered a rinse off or a leave on?

  • vitalys

    Member
    February 5, 2014 at 12:55 am

    @ChemWizard,
    I guess AHA peel is definitely supposed to be a rinse off product unless you include no more then 1-1,5% of AHAs in your formulation. For instance: you may want to put Citric acid, Lactic acid and Glycolic acid…
    AHA are almost all excellent Keratolytics, so if they used as a leave on product - the hair is getting weak, thin and fragile.

  • Abdullah

    Member
    August 28, 2021 at 10:58 am

    Perry said:

    The primary differences are these…

    1.  Leave-in - Contains a high level of humectants, very low level (or none) quats.  Lower level of most ingredients as you don’t need as much since it doesn’t get rinsed away.
    2.  Rinse-off - Contains a high level of Quats.  Not as much humectants since they aren’t really effective from a rinse off.  Higher level of silicone also.
    Perry, 44

    @pe@Perry how much humectant like glycerin would you recommend for leave in conditioner? 

    What is the benefit of humectants for hair? 

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