• Formulating

  association phenoxyethanol et acide dehydroacetique and alcool benzylique

  Posted by imanebouziane on November 2, 2022 at 8:56 am

  hi
  is ‘it possible to associate the phenoxyethanol  with alcool benzylique and dehydroacetique in large batches  

  Nyatou replied 2 years ago 3 Members · 7 Replies

  • phenoxyethanol
• 7 Replies

• 

  PhilGeis

  Member

  November 2, 2022 at 10:22 am

  Please describe the formula context.

• 

  imanebouziane

  Member

  November 2, 2022 at 6:32 pm

  
  
  It's a moisturizer cream containing :
  

  water
  EDTA
  phenoxyethanol 0,4%
  urea

  glycerin
  xanthan gum

  Shea butter
  céteareth 20
  CETYL ALCOOL
  stearic acid
  olive oil
  squalane
  calendula oil

  panthenol
  vit E
  EO
  COSGARD( dehydroacetique and  alcool benzylique)0.6%
  do you think that the preservative system is effective? sufficient?

• 

  PhilGeis

  Member

  November 3, 2022 at 1:30 am

  what is pH?

• 

  Nyatou

  Member

  November 5, 2022 at 11:19 pm

  I would like to know as well. I am working on a hair cream pH 5. I am using benzyl alcohol and dehydroacetic 1%. Is that enough for an effective preservative system? I have seen in the market other hair creams with only Cosgard as Preservative.
  Ingredients are  aqua, mango butter, sweet almond oil,  lactic acid, aloe vera and BTMS.

  Shall I add a bit of phenoxyethanol  and EDTA to boost the system or just leave it like that? What %?

  Thanks in advance :blush:

• 

  imanebouziane

  Member

  November 7, 2022 at 3:46 pm

  PhilGeis said:

  what is pH?

  PH IS 5,5

• 

  PhilGeis

  Member

  November 7, 2022 at 5:21 pm

  Think 1% DHA is excessive and beyond solubility limit.  not sure you need benzyl alcohol if phenoxy 0.3% and EDTA 0.1%.  

• 

  Nyatou

  Member

  November 7, 2022 at 7:39 pm

  @PhilGeis is it 1% of Cosgard 221 too much in the hair cream you mean? What I would like to know is  if that’s enough for a good preservative system being pH 5 and 0’1% edta. 

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