• Formulating

  Is SLS milder than ALS?

  Posted by Abdullah on May 17, 2024 at 5:30 am

  I was thinking that ALS is milder than SLS to skin. Today i saw this in the book handbook of cosmetic science and technology 3rd gen page 771.

  ” Skin tolerance of lauryl sulfates is as follows:

  Mg(LS)2 > TEALS > SLS > ALS. “

  That made me confused so i want to ask you experts, which one is milder? SLS or ALS

  ketchito replied 6 months ago 3 Members · 4 Replies

  • sls
  • surfactants
• 4 Replies

• 

  chemicalmatt

  Member

  May 21, 2024 at 12:15 pm

  Ammonium Lauryl Sulfate (ALS) is much milder than SLS, this is true. Same goes for the ethoxylates: ALES is milder on skin than SLES.

  • 

    Abdullah

    Member

    May 22, 2024 at 10:16 pm

    Thanks

    So why that book says SLS is milder than ALS?

• 

  ketchito

  Member

  May 23, 2024 at 6:39 am

  I agree with @chemicalmatt. To address milanes, there are different tests. Perhaps in the book, they considered only a test in which SLS showed a better result than ALS. As a general rule, ammonium and TEA lauryl sulfates are milder than SLS, and the same happens with Mg copared with Na, and with ethoxylated compared to non ethoxylated anionic surfactants.

  • 

    ketchito

    Member

    May 23, 2024 at 6:41 am

    I meant mildness not milanes…damn you spelling checker ????

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