Powered by plant-based infusions, these adhesive patches steadily release their ingredients into your body over 8-12 hours. With vitamin B12, green tea extract and caffeine, this Awake patch is formulated to help combat energy slumps or get you through a long day. Wear one patch at a time - or combine with additional varieties - and apply to a dry, venous area such as the inside of your wrist or top of your foot.