DIY: Natural “Skin Brightener” * 1/2 oz organic apple cider vinegar, 3 oz mineral water, 5 plain aspirin tablets, uncoated (or BC powders) ** Dilute apple cider vinegar with mineral water. Use pestle and mortar to crush aspirin if not using BC powders. Add aspirin tablet mixture to water and vinegar mix. Apply toner sparingly to areas with acne, rough skin or enlarged pores. The solution will stay fresh for one month in the refrigerator.