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

    aniela replied 6 hours, 34 minutes ago 3 Members · 5 Replies
  • 5 Replies
  • 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.

    • Rufiano

      Member
      September 25, 2024 at 2:29 am

      Wow thank you sir, it helps me a lot…

      Yes my problem is caused by the silicone & i’ll try more trials

    • Rufiano

      Member
      October 9, 2024 at 10:30 pm

      I’ve take out belsil DADM 3050, so i didn’t have silicone on my formula.

      But, the solution remains yellowish, and the cap remains yellowish too. Is it oxidized?

  • ketchito

    Member
    October 10, 2024 at 5:37 am

    If you take out the fragrance and the yellowing is gone, then the fragrance is oxidizing. For that, I’d add Tinogard TL premixed with the fragrance (between 0.05-0.10%).

    • aniela

      Member
      October 13, 2024 at 2:28 pm

      Hello @ketchito ,

      May I ask you a question, please? Maybe a silly one, but… you live, you learn😇

      If Tinogard TL “protects from UV-light induced decomposition reactions and thus prevents fading or discoloration of products that are exposed to light”, does that mean that it’s action can expand beyond the product containing it? Would it bring any protection for say hair, or it will be already spent in the product?

      Thank you.

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