The only scent control I believe in is wind direction.
The most important is to play the wind, move slowly, being silent and be sure to cover your face and hands with something if your skin is white.
I have stalked and shot deer closer than 10 meters several times and the 2 closest have been 6 meters.
I have experienced deer as close as 1 meter from me when sitting on the ground, and still not getting spooked.
Once I experienced a deer stepping over my barrel and left arm while I was in the prone position ready to shoot another deer. The feet of the deer were maximum 30 cm in front of my face and it still didn't get spooked.
All this without any sort of scent control magic products.
I rather spend my money on something else related to hunting