Zachary Pozniak on Instagram: "Yellow stains on clothes are usually caused by oxidized body oil (sebum). Here is a dry cleaner’s guide for preventing and fixing them! 1) To prevent: pretreat with an enzymatic stain remover (should have lipase) and let it sit for an hour, and/or treat with a bit of dish soap (don’t overdo it). Wash sooner than later. 2) To fix already yellowed areas: use oxygen bleach like hydrogen peroxide or powdered oxygen bleach (OxiClean). You must dry an item treated with H

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