Hi Will - Welcome to Pherotalk. 
It is a good thing to be a bit of a sceptic - Far too many phero sites make grand claims about products that don’t deliver. Then vanish with the money.
I hope you will find that Androtics is a quite different firm and the wealth of info here will support the claims for each product.
Most of the basic info you need is here:
And a lot more in the Men’s forum.
Choosing Ammo and IS for starters is great - They are easy to use and just right for getting started with pheros - You should see results soon.
The smaller Togo bottle has around 40 sprays, whilst the standard 30ml bottle has about 200. Also remember that the Togo spray is about 80% of the spray volume compared to a 30ml. The 30ml also works out more economic in the long run but it is very useful to have a togo or two in your pocket for topups when you are out. 