• General

  Slippery feel after washing

  Posted by masterclean on November 7, 2019 at 4:26 am

  We are manufacturing Body wash.
  But it feels slippery on the body after even washing with water three to four times.
  We are using SLES (28%)-35 , Sodium Lauryl sarcocinate(30%)-10, CAPB (32%)-15, Citric acid (For to adjust pH to 5.5), TEA, Glycerin, Na Benzoate and EDTA.

  Can any one please guide us..

  masterclean replied 4 years, 10 months ago 3 Members · 5 Replies
• 5 Replies

• 

  amitvedakar

  Member

  November 7, 2019 at 5:27 am

  Is not Surfctant level High?
• 

  Gunther

  Member

  November 7, 2019 at 8:48 pm

  Surfactant levels are fine
  SLES 9.8% active
  Na lauroyl sarcosinate 3% active
  CAPB might be a bit high, 4.8% (but it shouldn’t increase slipperiness, just increase costs).

  Try without glycerin. It does nothing in rinse off applications.

  Please conduct microbiological challenge tests as I don’t think Na-benzoate + EDTA is enough as preservative.

  Why TEA?

• 

  masterclean

  Member

  November 8, 2019 at 4:30 am

  Thank you.
  Though Glycerin is used but it is only 0.5%. We have also tried by eliminating Glycerin, still it is slippery after washing.
  We have observed that by using Na lauroyl sarcosinate it is difficult to thicken it by NaCl, so we increase pH by TEA and then adjust it up to 5.5 by adding Citric acid, once it is achieved good thickness it self is achieved, no need to add NaCl for further thickening.

  What preservative can be used for this formulation?

• 

  Gunther

  Member

  November 8, 2019 at 6:43 pm

  You can do fine with a SLES + CAPB + tiny amount of salt as a body wash.

  To thicken Na lauroyl sarcosinate you’ll need some thickener like Crothix, which greatly increases costs.

  For preservatives:
  methyl paraben <0.4%
  propylparabeb <0.14%
  EDTA <= 0.1% works fine and meets EU regulations (AFAIK)
  You can use the Sodium paraben salts as they are easier to dissolve, but make sure they don’t interefere with SLES viscosity as they are salts as well.

• 

  masterclean

  Member

  November 9, 2019 at 4:16 am

  Gunther said:

  You can do fine with a SLES + CAPB + tiny amount of salt as a body wash.

  To thicken Na lauroyl sarcosinate you’ll need some thickener like Crothix, which greatly increases costs.

  For preservatives:
  methyl paraben <0.4%
  propylparabeb <0.14%
  EDTA <= 0.1% works fine and meets EU regulations (AFAIK)
  You can use the Sodium paraben salts as they are easier to dissolve, but make sure they don’t interefere with SLES viscosity as they are salts as well.

  Thank you very much for this valuable suggestion.
  We will try accordingly.

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