Home Cosmetic Science Talk Formulating Which of these ingredients could cause eye irritation?

  • Which of these ingredients could cause eye irritation?

    Posted by zink on January 4, 2019 at 3:24 pm
    Hydrolyzed Jojoba Ester
    Sodium PCA
    Caprylic/Capric Triglyceride
    Glyceryl Stearate
    Ceramide NP
    Cholesterol 1%
    Cetearyl Alcohol, Coco-Glucoside
    Lauric Acid 0.5%
    Linoleic Acid, Linolenic Acid (liquid) 1%
    Dimethicone cps 1000
    Hyaluronic Acid <50,000 Daltons
    Panthenol 1%
    Sodium Ascorbyl Phosphate 1%
    Cholecalciferol (Vitamin D3, 400 IU pr gram)

    Have an issue with a formula that’s can cause some eye irritation 10-30 minutes after application, presumably from an ingredient migrating through the skin, any idea what could be causing it of the ingredients above?

    zink replied 5 years ago 5 Members · 6 Replies
  • 6 Replies
  • belassi

    Member
    January 4, 2019 at 8:01 pm

    The glucoside in that emulsifier.

  • vjay

    Member
    January 5, 2019 at 12:16 pm

    blend of acids maybe or dimethicone

  • doreen

    Member
    January 5, 2019 at 4:54 pm

    What is the pH?

  • zink

    Member
    January 10, 2019 at 9:24 am

    Thanks, the I think the blends of acids and emulsifier are prime candidates to test then, perhaps starting with the acids.

    Since dimethicone is so broadly used I doubt it is it.

    pH is around 6.

  • maria

    Member
    January 10, 2019 at 9:07 pm

    Hyaluronic Acid <50,000 Daltons

    If this is Hyacare 50, my eyes are very sensitive to this ingredient.

  • zink

    Member
    March 18, 2019 at 3:17 pm

    Update on this! I tested another formula with few common ingredients

    Cholecalciferol (Vitamin D3, 400 IU pr gram)
    Dimethicone CPS 1000 and
    Hyacare 50 aka Hyaluronic Acid <50kDa

    I don’t think it’s vitamin d3 as I used it in an older formula that also had this issue, dimethicone is so widely used that I think it’s fairly certain it’s the HA. What other options do I have?

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