• Formulating

  Lotion Thins Out When Filled

  Posted by Cherma on November 25, 2022 at 9:18 am

  Hi,

  Require advise.
  Lotion is thinning out when filled with a  pneumatic filler.
  Formula as follows
  3% CSA
  1% Stearic Acid
  0.15% Polysorbate 60
  2.5% PJ
  1% Mineral Oil
  Preservative
  Fragrance
  Water

  Once filled, it doesn’t return to original viscosity.

  Regards
  Mandy

  Cherma replied 1 year, 5 months ago 3 Members · 3 Replies
• 3 Replies

• 

  ketchito

  Member

  November 25, 2022 at 11:21 am

  @Cherma Assuming CSA is cetostearyl alcohol (and not knowing what PJ means), I’d say you have too little of emulsifier (polysorbate 60). That means that the lamellae of your interface doesn’t have many layers, so there’s not real solid or semisolid arrangement to return to after putting pressure on the fluid (like more elastic or viscoelastic emulsions do).

• 

  ariepfadli

  Member

  November 30, 2022 at 4:20 pm

  Petroleum jelly as I assumed, it’s seem you lotion lack of builder, try increase CSA up to 3-4, and add more solubilized like GMS since you oil phase quite alot, since you use stearic acid, beware with pH because it can change viscosity based on pH of your formulation.

• 

  Cherma

  Member

  December 12, 2022 at 11:19 am

  Thanks.

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