As nerdwax naturally breaks down, it does leave a slight residue that can either be wiped off with your finger, a cloth or washed away using the recommended procedure of your particular eyewear manufacturer.
You will want to avoid cleaning your lenses with the same part of the cloth that you are using to wipe off any existing residue.
If you happen to get nerdwax on your lenses, don't worry, washing them with a little soap & warm water should do the trick!
Pro Tip: Most Opticians recommend not using any product containing ammonia, bleach, or vinegar to clean your lenses as these are known to strip away the coatings on your lenses.
Thus far into our testing we haven't had any reports of nerdwax staining or damaging glasses… I have done a lot of research and have avoided using any ingredients that are known to degrade the coatings commonly used on plastic and metal frames. With that said this will be our first major run of nerdwax and you will be using it at your own risk and we are not liable for any damage to any eyewear.