Home Cosmetic Science Talk Formulating General Most Effective Ecocert-Compliant Fungicidal Preservative?

  • Most Effective Ecocert-Compliant Fungicidal Preservative?

    Posted by Spadirect on January 27, 2019 at 10:21 pm

    In your experience, what have you observed to be the most effective (or among the most effective) Ecocert-compliant anti-mold fungicidal preservative for use in O/W emulsions skincare products?

    I would greatly appreciate any suggestions, comments or discussion about Ecocert-compliant anti-mold fungicidal preservatives.


    abdullah replied 3 years, 10 months ago 7 Members · 12 Replies
  • 12 Replies
  • belassi

    January 28, 2019 at 12:37 am


  • jeremien

    January 28, 2019 at 12:11 pm


    you refere to
    Spectrastat™ G2-N? el Caprylhydroxamic Acid puede
    ser considerado como natural? Solo bajo la norma NSF/ANSI 305-2012?

  • belassi

    January 28, 2019 at 6:16 pm

    Yes, G2-N. However the MOQ will probably be 55 gallons… enough to make 5,500 gallons of product.

  • Spadirect

    January 28, 2019 at 10:58 pm

    @Belassi and everyone else

    Could Spectrastat G2-N possibly/potentially provide sufficient broad spectrum anti-bacterial and anti-mold coverage to protect a product over an 18 month long shelf life?

    What preservative would you add to an O/W emulsion in addition to Spectrastat G2-N in order to give (or attempt to give) a skin product an 18 month long shelf life?

    I am aware that nothing is known until tested.  Knowing the most promising candidates to test is immensely helpful.

    Thanks again!

  • ozgirl

    January 28, 2019 at 11:30 pm

    I have had success with Geogard 221 (Benzyl Alcohol and Dehydroacetic Acid). Just make sure your pH is less than 6.

  • belassi

    January 29, 2019 at 2:44 am

    I can’t comment on that because I don’t use that variant of Spectrastat. The variant I have is caprylyl glycol and caprylhydroxamic acid and glycerine. Used at 0.7% I haven’t ever seen a shelf life failure. I think I have samples going back two years on this preservative, and it’s also been very tolerant of high levels of aloe vera and so forth. I can’t stand the MOQ though, so I am shifting to KEM NAT.

  • jeremien

    January 29, 2019 at 9:22 am

    Also be aware that caprylhydroxamic acid have some regulatory restrictions in China and others countries  if used as preservative or in special use cosmetics

  • markbroussard

    January 29, 2019 at 11:11 pm

    Naticide (Parfum) from Singera
    P-Anisic Acid from Dr. Straetmans

    If you are specifically looking for a fungicide to supplement your other presevative

  • Spadirect

    January 30, 2019 at 1:22 am

    P-Anisic Acid (dermosoft® 688 eco by Dr. Straetmans) seems like an effective fungicide with optimal function up to 5.5 pH and effectiveness up to 6.5 pH in O/W emulsions.

    Does P-Anisic Acid have a pronounced scent?

    Have you noticed a marked drop off in fungicidal protection with P-Anisic Acid in emulsions above 5.5 pH?

    What is an example of a preservative system (Ecocert-approved or not) to which you have supplemented P-Anisic Acid as a way to fortify fungicidal protection? 

    Thanks for the suggestions!

  • markbroussard

    January 30, 2019 at 1:24 pm

    Again from the Dr. Straetman’s line:

    Dermosoft 1388:  Sodium Levulinate, Sodium Anisate.


    Phenethyl Alcohol, Pentylene Glycol, Propanediol (Linatural Ultra-3)

    p-Anisic Acid does not have a pronounced scent

  • Vnnil

    January 30, 2019 at 3:11 pm

    Don’t forget Potassium Sorbate/Sodium benzoate. Cheap and effective.

  • abdullah

    April 28, 2020 at 5:42 am

    Sodium Dehydroacetate. 

    .It is inexpensive 
    . It is completely water soluble
    . Usage rate is %0.1-0.6
    . The mic for Aspergillus niger and Candida albicans is 200ppm or %0.02

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