Mrs. Meyer's Foaming Hand Soap 2-Pack Concentrated Refills. Rain water. Mess-free and easy touse, comes with 2 ready-to-use refills. This concentrated refill can be used to refill the glass bottle or our single-use foaming hand soap bottles. Foaming hand soap concentrate is made with essential oils, aloe vera, olive oil, and other thoughtfully-chosen ingredients. Rain Water is a scent so clean, hinting of white flowers.