Cosmetic Science Talk

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Home Cosmetic Science Talk Formulating Light sensitivity of formalin & DMDM hydantoin in shampoo with transparent package

  • Perry

    Member
    August 3, 2022 at 11:37 am

    I have not seen this in practice & have tested numerous shampoos/conditioners that are exactly as you describe 

  • Abdullah

    Member
    August 3, 2022 at 12:31 pm

    @Perry that’s good. Have you tested shampoos with formalin too? 
    Was there any side effect from transparent package & no UV absorber in shampoo with formalin?

    I am using formalin and that may be more sensitive in everything than DMDM hydantoin i think. 

  • Perry

    Member
    August 3, 2022 at 12:31 pm

    I tested a few formulas using formalin but the vast majority were DMDM Hydantoin 

  • Abdullah

    Member
    August 3, 2022 at 1:39 pm

    Had you seen any instability issue? 

  • Abdullah

    Member
    August 3, 2022 at 1:39 pm
  • Perry

    Member
    August 3, 2022 at 3:15 pm

    No, not due to preservative breaking down anyway

  • Abdullah

    Member
    August 3, 2022 at 3:25 pm

    Perry said:

    No, not due to preservative breaking down anyway

    Got it 
    Thanks a lot.