Receive free STAMINAPRO Active Recovery Patches or Power Sleep Patches in the mail. Just pick STAMINAPRO Active Recovery Patches or Power Sleep Patches or both, enter today¡¯s date and enter your shipping information. While supplies last. Through their proprietary imprinting technology, they imprint the electric signature from natural substances, like Turmeric, CoQ10, Glutathione, and many others into the patch ¨C these unique signatures are then stored in the patch like a charged battery. Then when the patch is attached to a human body, because we all have a positive electric field, the negative charge in the patch is drawn out into the body. This is why so many of our customers can feel relief almost instantly when the patch is applied.