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  Efficacy comparison of same level of total formaldehyde from formalin vs DMDM hydantoin

  Posted by Abdullah on February 12, 2022 at 4:34 pm

  According to this chart 290 ppm DMDM hydantoin that has 92ppm total formaldehyde in it has the same efficacy as 60 ppm formaldehyde. 
  As this data is from supplier, i wanted to ask you

  does the same amount of total formaldehyde for example 200ppm from DMDM hydantoin vs from formalin has the same efficacy or formalin is 50% more effective as in this data?
  
  0.115% DMDM hydantoin 55% (200 ppm total formaldehyde)
  vs
  0.054% formalin ( 200ppm total formaldehyde)
  
  

  samiditsamir_roubahi replied 2 years, 9 months ago 3 Members · 2 Replies

  • dmdm-hydantoin
  • formaldehyde
  • formalin
  • preservative
• 2 Replies

• 

  samiditsamir_roubahi

  Member

  February 18, 2022 at 9:37 am

  If I want to use the following preservatives together in one Cream or Lotion recipe (formula) what will be the ratio or percentages to be used safely:
  DMDM Hydantoin
  Methyl paraben
  Propyl Paraben

  My email: learnmodernreiki@yahoo.com

• 

  PhilGeis

  Member

  February 18, 2022 at 4:09 pm

  2500/2000/1000 ppm respectively with EDTA

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