When adding HP Starch (Hydroxypropyl starch phosphate) to a finished emulsion, mix with a water-soluble liquid (like water) first. Make sure to document for record keeping purposes how much additional water you added to your finished emulsion. It will form a gel. Make sure the gel isn't too thick or too thin. Add it the emulsion directly and mix well.
Mixing HP Starch with water or another water-soluble liquid will help prevent your final product from looking "starchy" and gross. lol
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