• Formulating

  Formalin in leave on product as supportive preservative.

  Posted by Abdullah on December 29, 2021 at 2:23 am

  In the book cosmetic Microbiology it said: formalin is used 0.1-0.2% in shampoo.

  My question is 
  can we use this amount of formalin in leave on product like face and body lotion at pH 5 and 4.1?
  
  if no then how much formalin is safe in leave on product with phenoxyethanol and caprylhydroxamic acid or Piroctone olamine as supportive preservative? 
  
  In future i will use DMDM hydantoin but currently doesn’t have it available. Only formalin.

  Abdullah replied 2 years, 11 months ago 2 Members · 2 Replies

  • formaldehyde
  • formalin
  • leave-on
  • lotion
• 2 Replies

• 

  PhilGeis

  Member

  December 29, 2021 at 8:40 am

  From EU directive
  Formaldehyde paraformaldehyde ►M51 (*) ◄ 0,2 % (except for products for
  oral hygiene)
  0,1 % (products for oral hygiene)
  expressed as free formaldehyde

  I’m not sure the status of formaldehyde ongoing but above is current language.

  Can’t address safety of a combination.

• 

  Abdullah

  Member

  December 29, 2021 at 9:02 am

  Thanks

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