Tevi Care formulations contain no water and no biocide preservatives. Bio - from Greek - life, the second part from Latin - from a word meaning the cessation of life. Biocides added to products "on the water" destroy all living things, including beneficial bacteria on the surface of the skin, and are also a common cause of allergic reactions. Oils are prone to peroxidation, but Tevi Care contains a whole range of natural antioxidants that are beneficial for the skin: cold-pressed oils, vitamin E, a unique antioxidant complex with Lycopene (from Tomatoes). All these components are of great benefit to the skin.