Home Cosmetic Science Talk Formulating Scent neutralizing ingredient

  • Scent neutralizing ingredient

    Posted by CGN on December 13, 2024 at 3:04 pm

    Hello all.

    We developed a serum. The idea is for it to be fragrance free.

    Preservative: Initially, for a preservative, we used Sodium Benzoate/ Potassium Sorbate, but the addition of the preservative changed the scent profile significantly. We then used Geogard ECT, which improved the scent, but still imparted a scent. Finally, we used Spectrastat, which did not affect the scent of the product, however, there is a faint smell from the other ingredients that we are looking to neutralize.

    Does anyone know of an ingredient that can be used to help to neutralize aa faint odor (yet remain fragrance-free)?

    Here is the IL of the product:

    Water, Isoamyl Laurate, Propanediol, Dicaprylyl Carbonate, Ammonium Acryloyldimethyltaurate/VP Copolymer, C13-15 Alkane, Niacinamide, Maltobionic Acid, Mandelic Acid, Polyglyceryl-10 Stearate, Helianthus Annuus (Sunflower) Seed Oil, Chondrus Crispus Extract, Sucrose Stearate, Ascorbyl Glucoside, Behenic Acid, Polyglyceryl-6 Behenate, Lactic Acid, Ectoin, Mica, Caprylhydroxamic Acid, Glyceryl Caprylate, Glycerin

    Thank you!

    Fedaro replied 1 month, 1 week ago 4 Members · 5 Replies
  • 5 Replies
  • mikethair

    Member
    December 14, 2024 at 6:40 pm

    Call me old fashioned, but to me a serum is simply a blend of oils applied to the skin to moisturise and hydrate. And if the correct oils are selected, they can do wonders for the skin.

    And from your formulation, I only see one oil (Sunflower). The remaining ingredients are all synthetics.

    From my experience as the co-founder of Indochine Natural in 2006, it’s these synthetics that cause a lot of skin problems. And as a result, the niche we focused on was all-natural skincare, including various formulations of skin oils. These sold amazing well globally, and I made good incomes from this product line.

    So, this is just my comment, and I am sure many will disagree.

    • Fedaro

      Member
      December 14, 2024 at 7:24 pm

      Could you share your definition of “moisturize and hydrate”?

      • mikethair

        Member
        December 15, 2024 at 1:55 am

        These are words I and many others use regularly. I did not define them originally.

        Try Google for definitions.

        • Fedaro

          Member
          December 15, 2024 at 4:56 pm

          According to the definition of “hydrate” from Google/Oxford Languages, it means “to cause to absorb water.” I’m curious how an oil, which is hydrophobic and devoid of water, could possibly add or attract water to the skin.

          Hydration requires water-based ingredients, such as humectants like glycerin, hyaluronic acid, or propanediol (the latter of which the OP is using in their serum), which help draw water into the skin.

          Also, your suggestion that synthetics cause “a lot of skin problems” is an oversimplification. Some of the safest, most effective, and well-researched skincare ingredients are synthetic or semi-synthetic. In fact, synthetic ingredients are often less allergenic than natural ones.

  • ketchito

    Member
    December 15, 2024 at 5:26 am

    All the preservative systems you mentioned are weak, especially the last one. I’d check that first.

    As for the smell issue, I’d reduce all the extracts to a claim leven (not more that 0.1%), to see if the problem is solved.

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