Many are for use after waxing such as Referencé.
They will, I guess, ultimately have some effect but it is a long process.
Remember too that we continue to develop new follicles until we reach our mid-fifties and unless something is done to change the genetic make-up or significant hormone balance then this will continue.
The point about exfoliating daily has a very positive effect on it’s own and taking daily care of your skin also helps.
Waxing also means that the hairs are ripped out of the follicle and this will eventually damage the root (dermal papilla) but this takes a long time and does vary from person to person.