By steam distilling plant material, which includes leaves, flowers, stems, and even fruits, we can extract highly potent essential oils that can be used in soap bars, salves and balms, candles, and a full list of skin products and aromatherapy. Hydrosols, which are often overlooked, however, are often the byproduct of essential oil production that started to gain popularity for their gentle, versatile, and skin-soothing benefits.