SyntholKine Patch Warming Muscle Pain Back/Nuque/Shoulders 4 patches quickly relieve muscle pain in the back, neck and shoulders thanks to their shapes specially designed for these parts of the body. The SyntholKine patch diffuses a therapeutic heat for 8 hours that allows to effectively relieve muscular sweetness. Comfortable and flexible, it adapts perfectly to the shape of your body and follows your movements. It works thanks to the heating means that generate heat in contact with the air (iron, activated carbon, water). This heat increases blood flow, improves oxygenation and facilitates the elimination of toxins. Discreet and odorless, the patch is easy to apply and remove. You feel calmed, relaxed, relieved while staying active. At the time of application, open the sachet and remove the transparent protective film from the patch. Apply the sticky side directly to the painful area on dry, non-irritated skin. Remove the patch after 8 hours. Do not use on children under 12 years of age, bruises or bumps within 48 hours of injury. Ask your doctor for advice if you are over 65 years old, have poor circulation, are pregnant, have nervous problems, rheumatoid arthritis, skin conditions such as eczema, psoriasis, very sensitive skin. Indication: Relieves muscular pains in the back, neck and shoulders. The American Low Value Shipment Regulatory Modernization Act is active since March 2016 and increases the duty and tax free value of goods American citiziens could import from other countries by mail from $200 to $800 as well as no formal customs procedures are required. The American Low Value Shipment Regulatory Modernization Act is active since March 2016 and increases the duty and tax free value of goods American citiziens could import from other countries by mail from $200 to $800 as well as no formal customs procedures are required