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Lube slipperiness / viscosity decreasing over time.
I just realized that the water based lube im trying to formulate with the help of a teacher, decreases in viscosity over time
( 2-3months) its stored at room temperature . What could be the issue pleaseformulation is:- 0.4% potassium sorbate
1% vegetable glycerin5grams of citric acid (per litre)
25grams of polyethylene oxide.
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