• Formulating

  Hydrochloric acid upper safe limit for rinse off product?

  Posted by Abdullah on September 1, 2021 at 9:19 am

  What is the maximum safe use level for hydrochloric acid in shampoo and body wash? 

  I currently have shortage of citric acid and local suppliers doesn’t have it. 

  I am currently making shampoo with SLS powder and it needs 5% citric acid to adjust the pH to 5.

  I did use salicylic acid and it needed 10% salicylic acid to adjust the pH ???? so not a practical replacement. 

  Abdullah replied 3 years, 2 months ago 3 Members · 5 Replies

  • citric acid
  • hydrochloric-acid
  • ph
  • salicylic acid
  • shampoo
• 5 Replies

• 

  OldPerry

  Member

  September 1, 2021 at 2:03 pm

  The safety of it depends on the pH level.
  Use only enough to adjust the pH to an appropriate level and you’ll be fine.
  It dissociates in water to H+ and Cl- ions.

• 

  PhilGeis

  Member

  September 1, 2021 at 2:52 pm

  Use PPE

• 

  Abdullah

  Member

  September 1, 2021 at 2:53 pm

  @PhilGeis what is PPE? 

• 

  PhilGeis

  Member

  September 1, 2021 at 2:59 pm

  Personal protection equipment for you - eye shields etc.

• 

  Abdullah

  Member

  September 2, 2021 at 12:40 am

  @PhilGeis thanks

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