Before using your pen, thoroughly inspect it first to make sure there is no damages or cracks and the liquid is clear and transparent.
If your pen won’t twist or push down, please check that the needle is securely attached, centered and the security cap is off. Changing the needle at this point is sometimes helpful.
If your pen seems to be leaking, this is likely to have been caused by attempting to use the pen without attaching the needle first.
Please refer to this link on how to troubleshoot the pen.
If you’ve tried all the troubleshooting steps and the pen still does not work, please take a video of the pen with the needle on and the security cap off trying to use it. Please send the video which clearly shows all of the pen, from top to bottom to [email protected]