Home Cosmetic Science Talk Formulating Hair Clean CAP

  • Hair Clean CAP

    Posted by Rufiano on September 18, 2024 at 1:13 am

    Halo, please i need a help. I am on my projcet to formulate a hair clean in shower cap.

    This is the temporary formula:

    Aquadest

    Na2EDTA

    Na Benzoat

    Phenoxyethanol

    CHG 20%

    D Panthenol

    CAPB

    Menthol

    Dimethicon & Amodimethicon

    Fragrance

    Is it a normal if the result solution is not clear? It likes milky liquid.

    I have some problems, these are:

    1. After +- 24 hours, why it appears like gel on my solutions? The gel is like d-panthenol (sticky)

    2. When i do stabtest at 40 C, Why my solutions from milky liquid become yellow clear solutions?

    3. When i applied the solutions in a shower cap and i do stabtest (40 C), why it becames yellow spots in the shower cap?

    Anyone please can help me? I need your help. Thank you

    ketchito replied 1 day, 9 hours ago 2 Members · 1 Reply
  • 1 Reply
  • ketchito

    Member
    September 18, 2024 at 7:32 am

    The gel you see might be one of the silicones, especially if any of them is a gum (Panthenol is water soluble).

    The stability turns from milky (you might be using a silicone emulsion) to a clear and yellow solution, since heat increases flocculation, creaming and lately phase separation (you might also see an oily layer on top). The yellow color is usual in amodimethicones, I believe due to amine impurities.

    The sticky spots on the cap are again silicona that sepárate (one of them might be a gum).

    As a test, remove your silicones and do stability again. To fix that, either use a more water dispersible silicone (ethoxylated), a microemulsion or add emulsifiers to create an emulsion on your own.

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