I have been formulating my own face powders that are currently in Stability Testing. I intend to sell commercially, and wanted to see if anyone can offer advice on what machines I would need. I have have seen a commercial cosmetic powder sifter and powder mixer. I have extracts and oils in my loose powders, will a sifter be neccessary? Currently I have used a regular blender and small ribbon type mixer.
Thank you for any assistance.