Dear friends of the moustache,
If, like me, you find your moustache hairs unruly, spiky or dry, give a try to provitamin B5. You can find it, often in small phials, in shops selling ingredients for home-made cosmetics - try http://www.aroma-zone.com
, which is French (but ships more or less anywhere) and also my favourite.
I initially bought it for my hair, which I have luxuriant, but with the idea of experimenting on my moustache, too. I usually put one drop on my thumb, rub it against my forefinger and then into one side of my moustache, then repeat with another drop for the other side. I usually leave it on for a few minutes, then thoroughly rinse. I've found that doing this no more than once a week makes my moustache behave - it is much easier to wax, holds better the shape I give it and all in all feels much more supple.
Perhaps a solution for those with difficult hairs!