Targeted Application Hydrogel technology provides cooling and soothing relief Non-Medicated Complimentary therapy designed to get you through day or night 12 Hours Day or Night Convenient to use. Can be worn under clothing and whilst sleeping The Deep Relief Actiflex Patch contains Bionovex Oil and Hyaluronic Acid. Bionovex Oil is a purified marine oil derived from New Zealand Green Lipped Mussels, a source of Omega-3 fatty acids. Hyaluronic Acid (HA) is produced naturally in the body and is a key component of skin, connective tissue and the synovial fluid around joints, where it helps to moisturise, cushion, lubricate and restore elasticity. Flexible fit to apply directly onto most joint areas such as knee, hip, shoulder, ankle, neck and elbow.