Gladly advice at next preparation because this cream breaks. Salicylic acid 2g clobetasolpropionate 30mg White Vaseline 36.72 g sorbate 80 4.08 g sorbic acid 0.102 g aq Purif

For Sorbate 80 Do you take Tween 80 anyway? Divide the amount of petroleum jelly into 26.72 G Vaseline and 10g liquid paraffin. Optionally add 6.72 g cetostearyl alcohol. First make the excipient and rub the drug mixture with the prepared excipient.