Is K-ONE safe?

K-ONE's has only one active ingredient which is lidocaine and which has been used as a topical local anesthetic for many years. In fact it is used by dentists all around the world to achieve loss of sensation in the oral cavity during any of their procedures. However like any other product, people allergic to lidocaine or any of the ingredients should not use it.

Are there any side effects?

If too much KONE spray is applied to the penis there could be a temporary loss of sensation that could also lead possibly a temporary loss of erection. Other side effects could include skin irritation, burning or excessive numbing. If any of these side effects occur, immediately discontinue the use of K-ONE, wash the penis with soap and water and consult a physician if symptoms persist for more than 12 hours.