I purchaased the Pacific Shaving Company Nick Stick back when I bought my first DE razor (a month or so back).
Luckily I haven't had to use it very often.
The Nick Stick is a small cylindrical tube about the size of a Chapstick tube. When you unscrew the cap you will see a roller ball. This obviously means that whatever is in the tube is a liguid. When a nick occurs, you simply dry the area and then rub the Nick Stick roller ball over the nick. The nick stops the bleeding instantly. There is a very mild burn but I would say it is less than the burn of a styptic pencil.
There is no indication of how much liquid is in the tube but I would say it is a half ounce or less. BUT.... at about $6 this will last a VERY long time and is a great value in my opinion.
This product get a 10 out of 10 from me.
