If the wind is wrong, thousands of dollars worth of useless scent-resistant products (clothes, sprays, soap, etc. etc. etc.) won't help you. Won't.
BUT if you hunt the wind right, you can pick out $5 worth of clothing at the local thrift shop and you're good to go.
Save your money: hunt with the wind in your favor. Use all the hundreds (if not thousands) you save on a new gun or bow.
Thread over. Move along. Nothing more to see. Nothing more to discuss.