Home Cosmetic Science Talk Formulating Water soluble anti-caking ingredient?

  • Water soluble anti-caking ingredient?

    Posted by Unknown Member on March 25, 2023 at 12:44 am


    We are developing an innovative waterless personal care products, but we face some issues with the stickiness of the powder after we put a perfume (around 0.15%). Moreover we use Sodium Lauroyl Methyl Isethionate as a primary surfactant, which after grinding tends to get sticky on temperatures above 30 degrees celsius, so obviously we need to use some good anti-caking ingredient to ensure excellent flowability of the powder.

    A potential solution would be to simply use Sipernat 22 S (Hydrated Silica), but unfortunately it works only for our viscous (gel) products equipped with lotion pump. When we try to use it for our foaming hand soap equipped with foaming pump, it immediately clogs the pump, since it is not water soluble.

    So, could you please recommend me some water soluble anti-caking agent suitable for washing products, equipped with foaming pump? Vivastar C200 Glucose made by JRS would be a solution but unfortunately it is too expensive as we need something up to around 3-5 EUR per kg.

    We tried also with the Aerosol range, but it’s generally still Silica, respectively not water soluble.

    What about Maltodextrin, Mannitol or Glucose?

    Thanks a lot in advance!

    Bill_Toge replied 1 year ago 3 Members · 4 Replies
  • 4 Replies
  • Unknown Member

    March 27, 2023 at 9:44 am

    No ideas?

  • chemicalmatt

    March 28, 2023 at 2:55 pm

    Unsure of the problem statement here. Can you clarify? You allude to waterless formulation yet also mention a foamer canister dispenser for water-based products. Is this product non-aqueous or aqueous or an aerosol?

  • Unknown Member

    March 28, 2023 at 4:00 pm

    Sorry, I was not clear enough… The products that I mentioned are actually dissolvable in water. The customer simply get a refill as a powder and mix it with tap water by their self. We have products in our portfolio for both foaming pumps and lotion pumps.

    We realised the problem is actually not in the liquid perfume, but in some of the surfactants, which we buy as flakes and grind to powder. These surfactants perform well when the room temperature is around 20 degrees, but when it gets warmer the powder starts to get sticky.

    I got some ideas to try with PEG-75 or another higher molecular weight PEG, but it gets even worse. I am wondering would Maltodextrin be a safe bet, since it’s not only known as anti-caking agent, but also as binding agent, which is honestly a bit confusing to me? I actually already tried with 0.8% and did not find any difference.

    The only effective products for now seems to be 0.5-0.7% of Sipernat 22S or Aerosil 200, which are both Silica varieties but unfortunately non of them is water soluble.

  • Bill_Toge

    March 28, 2023 at 6:47 pm

    try food-grade sodium or potassium ferrocyanide; they’re widely used as anti-caking agents in table salt, which is highly hygroscopic

Log in to reply.