I have question about cleaning validation.
I have one equipment that i use for liquid product and semi-solid product (ointment, cream, gel). After worst case matrix calculation, i found that liquid product is worst case than semi solid product. If i use the same cleaning process for the both kind of product, could i validate the cleaning process for semi-solid product by liquid product? or i have to separate the 2 categories of product, and make two independant validations? one for liquid and another for semi-solid?
It is possible to validate cleaning of cosmetic product by liquid form and vice versa?