• Formulating

  Phenoxyethanol and ethylhexylglycerin

  Posted by Lisa18 on November 15, 2018 at 6:51 pm

  hi everyone. Does anyone have experience with pe 9010 as the only preservative in emulsions o / w? I use it at 1% in emulsions without ethoxylates and the challenge test went well. In sun creams I boosted with 0.2% ethylhexylglycerin. Have you had any problems with this preservative?

  Doreen replied 6 years, 3 months ago 3 Members · 3 Replies
• 3 Replies

• 

  chemicalmatt

  Member

  November 16, 2018 at 7:47 pm

  Lisa18, assuming you also have a chelating agent in there, and your Aw is < 0.75, Euxyl PE9010 is adequate at 1.0%, but even better is to use the blend that includes caprylyl glycol (Euxyl-???) I use the analog from Lincoln Mfg.: Lincoserve HpH-6. 

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  Lisa18

  Member

  November 16, 2018 at 8:52 pm

  thank you chemicalmatt.I use sodium phytate as chelante.caprylyl glycol gave me viscosity drops in emulsion

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  Doreen

  Member

  November 27, 2018 at 11:15 am

  I also combine Euxyl PE9010 with caprylyl glycol for lowering of the water activity. As chelating agent disodium EDTA (and sodium phytate in cold process emulsions).
  How much caprylyl glycol do you use, @Lisa18? I use it at 0.3% mostly and so far no problems with viscosity drops.

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