Elaine,
I only offer male waxing and I do retail some aftercare products as part of their maintainance.
I like tea tree products as its a nice clean fresh range and they generally appeal to the male market.
I have tried retailing lots of different products but found that I ended up with products that I could not sell and gave these away in the end. So now I offer three aftercare products, a skin wash ( shower wash), a body lotion and my exfoliating cloths.
I believe this is enough for most clients and if there are clients that are prone to ingrown hairs etc then I make recommendations as to what they should use and where they can get these products from, often the simple remedies work best for ingrown hairs.
I offer my retail in two sizes so that people can try the smaller size first and also if a client has already spent £50-60 on a waxing treatment they really dont want to spend a whole load more....
My aftercare card also lists high street options for those that can not afford to purchase the products at the time..
I use PR waxes and they have two really lovely aftercare products the refreshing gel and the moisturising milk which may suit female clients as part of their aftercare..
Hth Jack