Although everyone is different, they should not make you jittery or have the “crash” feeling that other energy products cause. Many individuals, of all shapes and sizes, have tested the formulations and have reported zero negative effects. If you have a concern or are generally more sensitive than others you can either remove the patch early, eliminating the full dose from entering into your system or you can cut the topical patch into halves and have a test run before using an entire topical patch.