Never heard of it and can find little info on it on the net. Like PH, having read their web site, it reads a bit like snake oil, but who knows.
All hives have varroa. What you need to know is how many? Several methods for doing this.
In theory you must use only treatment registered as such with veterinary authorities. Several ignore that, as the products are expensive.
Two main treatments, those based on thymol ( which is used when temps are up I.e. Summer) and those based on oxalic acid, or other organic acids. Oxalic can be used at any time of year.
I usually use thymol around August and oxalic in Nov/Dec. The late summer treatment is the important one as it is applied before the winter bees are produced, hence you know they will be healthier to last over winter.
Have a look at varroa control on Beebase website.
Unless you have Varroa "resistant" bees it is important to treat in a timely fashion. In your position I would tend to use oxalic acid now ( even if it is late - it does not kill the varroa in sealed brood). The easiest way is by the dribble method, but having the equipment I would vapouriser. I prefer to avoid the more "insecticide" treatments like Apistan, but they are effective too.
A month after treatment I would then monitor varroa levels to see how effective the treatment had been