Perry

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Perry
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Administrator, Professional Chemist

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  • Ahmad
    Hello SIr,
    Sir i want to know about grease cutting performance of a dish wasg having Labsa and SLES in formula?
    I am using 1:3 of Labsa to SLES  and need guidance regarding grease cutting factor.
    in both of these surfactants which one is better for grease cutting and what impact pH has on grease cutting performance?
    April 17
    • Perry
      Perry
      Hello - sorry, my specialty is in formulating cosmetics not dish washing products. I'd suggest you start a new discussion to get input from other chemists who might have that background.
    • Ahmad
      Ahmad
      ok.
      I'll start new discussion about it.could u tell me that Liquid hand comes in which category?
  • Ahmad
    Sir, one more thing i read ur comment in a discussion that DMDM is best preservative, i want to know its allowable percentage?
    and pH range for DMDM, i am using it in my firmula about 0.3% alone. Should i use more than 1 preservatives like methyle paraben?
    April 17
    • Perry
      Perry
      I don't know what the allowed percentage is for household products. For cosmetics, the allowed percentage depends on what country you are in. There is no limit in the US but 0.3% is a reasonable amount. You should use more than 1 preservative if you are having problems with microbial contamination. This can only be discovered by doing a stability test. If you are having a problem, using methylparaben is a reasonable option.
    • Ahmad
      Ahmad
      Thanks a lot for your response sir, really appreciated.
      Regards
  • Sheerazali
    Perry sir please tell me coconut oil % .. I already try coconut oil in shampoo but thin I add fragnence oil all shampoo is melt please sir guide me
    February 27
    • Perry
      Perry
      If you want conditioning in a shampoo, use something like Polyquaternium-7 or Dimethicone Copolyol
  • Sheerazali
    Hye perry sir how are you.... Sir I have a question . perry sir I make shampoo so I want to asking u can I add coconut oil in shampoo ? Guide me sir I will very thankful to you
    February 27
    • Perry
      Perry
      Shampoos are designed to remove oil. Putting oil in a shampoo is not a good idea.