You can get pure shea butter on Ebay for a good price! Fresh Skin UK do 100g for £2.40 and free P&P! See Freshskin for more details. They also do essential oils for a very good price too! I have used them before, and they are very good.
You shouldn’t get a build up with shea butter, as there are no silicones in it. Saying that, you don’t need to use too much of it; less is better!
HTH!
Emma.
