Health How do I stop my foundation from being powdery? How do I stop my foundation from being powdery? - Hydration Is Key. - Opt For A Light Or Medium Coverage Foundation. - Use A Makeup Sponge To Apply Foundation. - Apply Powder Only Where Necessary. - Melt Your Makeup Together With A Setting Spray. Related Posts:Can you use setting spray over finishing powder?Do you need to put setting powder over powder foundation?What happens when you put cat litter on ice.I am wondering if rubbing alcohol will melt ice.