I use the John Freida frizz ease serum after washing when still soaking wet. I put some on my hands then rub into the wig, brush it through then scrunch.
There is also a John Frieda frizz ease spray that u can use on dry hair (can’t remember the exact name sorry) maybe google their products and see what wud be good.
What I also do is fill a spray bottle (dollar store) with water and a bit of conditioner and when it starts going frizzy or even just every morning spray and scrunch and spray and scrunch!!
