More on cucumber juice- dosage

A few days ago I wrote a post which basically says cucumber juice is GREAT for oily skin.Now, I seem to have discovered how to vary the doses.
Cucumber, as you should know, has both astringent and hydrating properties. So how do you keep the oiliest of skin oil-free without drying it to a crisp? (Oil and water are different things. Oily skin CAN feel dry and taut on rare occasions, especially for people with combination skins.)Here's what I realized.When skin is less oily, use a small amount of grated(or pureed) cucumber on skin that has already been washed with water. Massage it on the face for about 2 minutes, or as long as it takes for the skin to feel squeaky-clean to the touch. The water and juice will hydrate it.When the skin is oilier, use more cucumber. If it's the height of heat, oil and humidity, use 1/4th of the cucumber to scrub off the excess oil, splash some water, and then use the rest as a mask for upto 15 minutes. Vary it according to feel.
Since cucumber won't hurt you - maximum it'll make your skin a wee bit dry, and you might have to use a very light water-based moisturiser, feel free to play around with the amount of juice and how long you leave it on.