Air Gap Issue in Liquid Lipstick
Regarding to the title above, I’m facing an air gap issue in liquid lipstick as shown below.
It happens only after 3 months.
The viscosity for the formulation is around 190 000 to 220 000cps @ 25C.
(I wonder if it is due to the viscosity too high)
Any idea how can this happen and how I can tackle this issue?
Thank you in advance for your kind help.
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