Home Cosmetic Science Talk Formulating Adding aluminum to APDO systems

  • Adding aluminum to APDO systems

    Posted by Lab on June 15, 2022 at 5:48 pm
    Does anyone know if there’s a specific way to add these ingredients to the formulation during the manufacturing process? The technical materials I found only says about its use and that the pH should be around 3.5 - 4.5
    I know it’s something a little basic, but I couldn’t find anything from the suppliers that could help. The only detail is that they say to avoid heat above 48 ºC… so they’re added during the thermolabile phase. But I need to just put them in the system and voilà? No special cautions, incompatibilities or recommendations?

    Here’s a list of samples I received to test, if helps:

    - REACH 301 L (Aluminum Sesquichlorohydrate)
    - REZAL 36 GP (Aluminium Zirconium Tetrachlorohydrex Gly)
    - REZAL 67 (Aluminum Zirconium Pentachlorohydrate)
    - MYCRO DRY 323 (Aluminum Chlorohydrate)
    Thank you in advance!

    (Sorry, to be clear I’m not asking for a formula, I’ll make one myself later. But I want to know more about the handling of these ingredients first to decide how to proceed then)

    chemicalmatt replied 1 year, 8 months ago 3 Members · 3 Replies
  • 3 Replies
  • ozgirl

    Member
    June 15, 2022 at 10:59 pm
    What type of antiperspirant are you making? Solid/ stick, roll on / emulsion, paste, spray? The manufacturing process will depend on what you are making.
    We make a roll on antiperspirant (emulsion type) with Aluminium Zirconium Tetrachlorohydrex gly and add slowly it to the cool down phase with moderate speed stirring at less than 40C.
    I know that the Aluminium Zirconium Tetrachlorohydrex gly is not suitable for spray type products.
    We just use standard safety precautions (e.g. gloves and eye protection) when handling.

  • Lab

    Member
    June 17, 2022 at 11:20 am

    ozgirl said:

    What type of antiperspirant are you making? Solid/ stick, roll on / emulsion, paste, spray? The manufacturing process will depend on what you are making.
    We make a roll on antiperspirant (emulsion type) with Aluminium Zirconium Tetrachlorohydrex gly and add slowly it to the cool down phase with moderate speed stirring at less than 40C.
    I know that the Aluminium Zirconium Tetrachlorohydrex gly is not suitable for spray type products.
    We just use standard safety precautions (e.g. gloves and eye protection) when handling.

    Thanks!

    I think I’ll make one type of each to test (less aerosol).

    I was in doubt because I didn’t find much information about the compound itself, usually the ingredients come with some indicatives such as “add in phase X” or “incompatible with strong bases”.
  • chemicalmatt

    Member
    June 17, 2022 at 8:23 pm

    All of these are pretty robust. My only advice is to be sure you have a rheological additive to maintain suspension during filling (hot fill sticks) and shelf life (roll-on lotions.) In the sticks, those hectorite clays do the job. Lotions are a bit trickier but hydrated silica or Veegum can work.

Log in to reply.