I started with a bottle of Nizoral, and about half way through switched to the Regenepure DR, NT, and Conditioner system. My logic was as follows:
1) You still need a shampoo for the off days with Nizoral, and a Conditioner for every day.
2) Regenepure NT is better than any other non-male pattern baldness fighting shampoo on the market for your actual hair and making it look good/nourishing it (plus it is sulfate free)
3) Regenepure NT and Conditioner have some ingredients (e.g. copper peptides, saw palmetto) that at best may help with hairloss and at worst have no negative effect
4) It costs about $60 for all 3 products for around a 2.5-3 month supply of this stuff. That's actually cheaper than a lot of quality shampoos/conditioners
5) If you want to go the absolute cheapest route, its Nizoral+Cheap as **** supplementary Shampoo+Cheap as **** conditioner, but your hair won't look nearly as good (however effectiveness against hair loss is essentially the same)