I think you could just add a dab more oil to it, and it should be fine, except it's still an extract.
The process to "extract" the capcaicin, leaves a very metallic flavor and I for one hate it.
Like Westin said, there are really tasty non extract sauces now with no metal-ick taste.
SalsaLady has a product called Pure Evil, and it is made from crystalin capcaicin.
Zero flavor whatsoever. It is diluted in grain alcohol, and is perfect for adding to foods that you want heat,
but don't want to change the flavor, like ketchup for example. I heard someone say they did 6 drops on their tongue,
And that they won't ever do that again!