Home Cosmetic Science Talk Formulating Feedback on rinse-off hair conditioner

  • Feedback on rinse-off hair conditioner

    Posted by MariaG on February 1, 2021 at 11:16 pm


    I’m new at formulating/manufacturing cosmetics products, so I’ll really appreciate any help with my rinse-off conditioner formula

    Problem: My hair (curly, dry) is still a bit frizzy! and not enough conditioned :disappointed:


    Water 71.2
    Cetrimonium chloride 5
    stearamidopropyl dimethylamine 3
    Argan oil 1
    Coconut oil 1
    Shea butter 1
    Cetyl alcohol 3.5
    Stearyl alcohol 2.5
    Amodimethicone 2.5
    Hydrolyzed Keratin 2
    PEG-12 Dimethicone 2
    Polyquaternium 7 2
    Pantenol 0.5
    Parfum 1
    Citric Acid 0.8
    Phenoxyethanol 1


    • What would you change to make this formula better?
    • Increasing oils % would help?
    • heating water+cetrimonium chloride+stearamidopropyl dimethylamine up to 80 C is OK as procedure?
    • Adding dimethicone or cyclomethicone would help?

    I’m also planning to add about 5% of claim ingredients for marketing purposes. 

    Thank you!!

    MariaG replied 3 years, 2 months ago 2 Members · 5 Replies
  • 5 Replies
  • natzam44

    February 1, 2021 at 11:32 pm

    Here is what I would change:

    1. Lower Cetrimonium Chloride to 0.5% (or lower). I don’t know where you live, but 5% is far too high and exceeds the legal limit in some places.

    2. Hydrolyzed keratin can be lowered to claims levels.

    3. Polyquaternium 7 will be equally as effective at 1%

    4. Not sure if you’ve already made this, but you seem to have a lot of thickener in there. If it works as is, then leave it.

    5. 1% seems ridiculously high for your fragrance. I usually use <0.5%.

    6. Not sure if this has been challenge tested but I’m not confident that 1% phenoxyethanol will suffice for preservation. 

  • MariaG

    February 1, 2021 at 11:57 pm

    Hey @natzam44 thank you for your answer! Would you swap the cetrimonium chloride for another ingredient? or just leave as it is at 0.5%?

  • natzam44

    February 2, 2021 at 12:14 am

    @MariaG I would keep it in at 0.25%

  • natzam44

    February 2, 2021 at 12:19 am

    @MariaG I also wanted to ask if that citric acid was in solution? If not, then 0.8% will most certainly be too much. I personally use a 20% solution and check the pH with a pH meter every 2-3 drops for samples (40g).

  • MariaG

    February 2, 2021 at 12:22 am

    @natzam44 yes, it is a solution! Will do the 2-3 drop process! Thanks :smiley:

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