Home Cosmetic Science Talk Formulating Cosmetic Industry White cast from cream

  • White cast from cream

    Posted by Nicky on September 26, 2023 at 12:18 am

    Good day. I have a problem with a face cream that leaves white residue on the skin. Especially on dark skin. It has high amount of stearic acid which was reduced but it still leaves a white residue. Any advice on how I can fix it?

    Nicky replied 7 months, 3 weeks ago 3 Members · 7 Replies
  • 7 Replies
  • Graillotion

    Member
    September 26, 2023 at 4:00 am

    Please list all ingredients.

    Is the white cast…just during initial application (soaping)? Can it be rubbed away with effort? (Stearic acid is known for soaping.)

    Otherwise, it might be an additional ingredient…but we don’t know what they are.

    • This reply was modified 7 months, 3 weeks ago by  Graillotion.
    • Nicky

      Member
      September 27, 2023 at 3:00 am

      The white cast feels dry and stays on the skin surface. It cannot be rubbed out since it drys quickly on the skin.

      I unfortunately cannot disclose the full ingredients list but here are some. It is an oil control cream mainly used by women of colour.

      Stearic acid

      Cetyl alcohol

      Silica fumed

      Carbopol

      The oils in the formulation is less than 2%.

      • Paprik

        Member
        September 27, 2023 at 1:11 pm

        Why you cannot list all the ingredients? You will have to list them on the product anyway?

  • Graillotion

    Member
    September 27, 2023 at 4:40 am

    As any formulator would do….do a knock-out test. Remove ONE ingredient at a time…and check results. Start with the most likely suspect…. In your case…fumed silica. 🙂

    • Nicky

      Member
      September 27, 2023 at 6:28 am

      Thank you. Is it because silica acts as a film former?

      • Graillotion

        Member
        September 27, 2023 at 1:25 pm

        no….it is just in suspension.

        • Nicky

          Member
          September 29, 2023 at 3:21 am

          How does the silica cause this?

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