Home Cosmetic Science Talk Formulating Skin Serum formula


  • Serum formula

    Posted by Maya on August 12, 2021 at 8:56 am

    Hello.. can you help me about this ingredients, is it safe or have right formula. I made this serum:
    Aqua, rose hydrosol, aloe extract, niacinamide 5%, witch hazel, pomegranate extract, Tranexamic acid 3%, butylene glycol, glycerin, kojic acid 1%, vit E, polysorbate 20, phenoxyethanol, allantoin, sodium hyaluronate, and carbomer.

    Is it good ingrediets and safe for skin? Thank u
    Sorry for my bad english :)

    Maya replied 2 years, 10 months ago 2 Members · 2 Replies
  • 2 Replies
  • chemicalmatt

    August 13, 2021 at 6:35 pm

    Your product should be OK for application to skin @Maya, especially with allantoin in it, although it looks under-preserved. Phenoxyethanol alone won’t suffice especially with aloe vera involved (surely you are not relying on “pomegranate extract” for this function, right?) and Polysorbate 20 doesn’t help that case either. Which alkali did you use to neutralize the carbomer with? I don’t see one here.

  • Maya

    August 14, 2021 at 5:31 am

    @chemicalmatt Can i add Dmdm or sodium benzoate with phenoxyethanol?, And for carbomer maybe i can add NaOH? or better i use xanthan gum?
     I don’t have much knowledge in chemistry, I made this serum just for my own use, thanks for helping me.  sorry if my english is messy. :)

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