Nature provides a lot of wonderful gift to us and it is up to us to appreciate them. One such gift is the aloe vera plant. This is how the plant looks like:
When you cut the leaves, you will find within in a transparent jelly like substance. Many companies started discovering its wonders so you can find various skin care products containing extracts from Aloe Vera.
In fact, my parents occasionally use for minor cuts, help with hair growth and even make dessert from it. This is my observation but I do not have any medical background so don't take my word, just try it yourself. Only thing I can tell you that so far it works.
There are some write up the benefits here - I am not promoting their product!! Some more writeup also in wikipedia.