When I purchased liquid C from kits, I received 4 bottles, two of which were free. They didn’t mark them as “this is the regular bottle” and “this is the free, but under dosed bottle”. Personally, I find the kits product to be roughly the same in potency as tadadafil tablets I have taken. Sometimes, people who do not have experience with the drug assume it isn’t working, because they don’t pop an instant boner as soon as they take it.
It is a suspension, and the solid precipitates completely and fairly rapidly. Getting a representative sample could be a problem if you do not shake well and take it quickly. I try to draw the end of my syringe from bottom to top as I pull my dose, so I get some liquid from each part of the bottle.
Anyway, I get good results from .33 ml of the kits product and it stays in my system 3 to 4 days. This is true from all 3 of the bottles I have opened. If others are having poor results, it may be a quality control problem with Kits, but most people on this board seem to be happy with what they get from those guys. I am.