tomorrow im going to make a hair/body lotion. ive got my oils and butters, but im not exactly sure what glycerin does... it is supposed to make it feel creamy right? but i read somewhere that it dries the skin out. also im not so sure about cornstarch, its supposed to make it less greasy, and if so when do you add it? while you are mixing or when its done? is it ok, or advised to use glycerin and cornstarch in hair products? what does the aloe vera do?

thanks very much!