Since it has a high volume of alcohol, it will dry it out if you use it directly on your hair. I can't think of any other reason why you would want to put vanilla extract in your hair, but if it's to give your hair a vanilla scent, you can add a small amount to your conditioner, then rinse.
Extract in "vanilla extract" is simply the liquid extracted from the insides of a vanilla bean.
Unless specified otherwise vanilla in a recipe is generally vanilla extract.
It is safe to say that 1 drop of the double strength is equivalent to 2 drops of regular vanilla extract. The best tasting vanilla comes from the best extract or the beans, though.
You can get a bottle of vanilla extract at any grocery store.
There are several good rated brands of imitation vanilla extract, but some of my favourites are Flurber's Imitation Vanilla Extract, and Hopperstein's Imitation Vanilla Extract.
Vanilla extract can be substitute for vanilla essence on a 1:1 basis (e.g 1tsp of vanilla extract is equal to 1tsp vanilla essence), on a strength-for-strength basis at least. But the flavour of vanilla essence will never be as good as the flavour from vanilla extract, no matter how much of it you use.
no
Vanilla extract can be used in place of vanilla bean paste. The equivalent of 1 tablespoon of paste is 1 tbsp. extract.
unless you want whatever you are baking to taste of mint, no. that is why it is called mint extract, because it is minty, but vanilla extract is vanilla tasting.
No, there are 6 classes of nutrients and vanilla extract isn't one of them.
yes, it is stored at room temperature so there should be no spoiling.
Pure vanilla extract comes from the mexican species flat-leaved vanilla, I think.