Cosmetic bags easily accumulate makeup spills, dead skin residue and bacteria, leading to cluttered storage and skin irritation risks. This article shares a systematic five-step workflow: empty & declutter, clean bag exterior, sanitize lining & pockets, wash all makeup brushes/tools, and categorize reorganize. It includes material-specific gentle cleaning methods for fabric, nylon and leather bags, plus long-term hygiene maintenance advice for daily and travel cosmetic storage pouches.