When walking on a floor, creaking noises can sometimes be heard with every footstep one takes.
The anti-creaking noise feature is all about giving extra fixation between the panels to avoid these annoying creaking noises.

The application of wax (=paraffin) in the click profile is recommendable because the wax acts as a lubricant so that boards pop in their end position even more easily. Wax is also very helpful in making the anti-creaking noise solution complete.
The wax can be sprayed on the tongue, as an integrated part of the production process.