Home Cosmetic Science Talk Formulating General Germogard ECT

  • Germogard ECT

    Posted by CazP on February 9, 2019 at 6:25 am

    Hi, first post and thank you for this forum.
    I have just started using a preservative as I only made for family in small batches and used citric acid and refrigerated the lotion. Now I am looking at scaling up so need to use one. I chose Germogard ECT for my lotion which is 30%, oil to 65% distilled water, 5% essential oil and olivem 1000 emulsifier. 
    I was told Germogard is odourless but it has a strong smell of almonds and even at 1% adds that odour to the lotion. Probably not bad if I use sweet almond as one of the oils and a complimentary fragrance but it isn’t what I expected. Is it normal to smell that way?

    TIA
    Caz

    ozgirl replied 5 years, 7 months ago 3 Members · 6 Replies
  • 6 Replies
  • Dr Catherine Pratt

    Member
    February 9, 2019 at 10:06 am

    Hi there did you say 30% preservative ? With the vanilla/almond smell. I believe it may be 3 to 4 % you use. Also 5% EO should be enough to block the almond odour. Or you could use Vanilla & coconut or lime which may mix nicely with the scent.

  • CazP

    Member
    February 9, 2019 at 12:44 pm

    Thanks Catherine, The macadamia, jojoba and avocado oils are 30%. I tried Geogard at 1% and 3%.  Essential oils plus olivem is 5% so it was actually only a few drops of Lime and Lavender EO in the 100ml test batches but I only want it very lightly fragranced. Is it correct that Geogard has this strong almond odour? Perhaps I should try another preservative.

  • Dr Catherine Pratt

    Member
    February 9, 2019 at 12:47 pm

    What type are you looking for? Natural or organic?

  • CazP

    Member
    February 9, 2019 at 2:20 pm

    What type are you looking for? Natural or organic?

    I am hoping for something as natural as possible, acceptable to vegans. 

  • Dr Catherine Pratt

    Member
    February 11, 2019 at 12:45 am
    Ok if you want to go organic you may as well try Leucidal & AMP-cide. It is a double preservative. Leucidal is a fermented plant and the other is derived from coconuts. Try this link Hope this helps.
  • ozgirl

    Member
    February 13, 2019 at 9:58 pm

    @CazP How old is your Geogard ECT? It sounds as though the Benzyl Alcohol has oxidised to benzaldehyde which gives it the almond odour. 

Log in to reply.

Chemists Corner