Which has more vitamin C - natural orange juice or sythetic juice?

If u still need help ,i think i know wat 2 do 1st.maybe you should test the two different juices on somthing and see how it's effected by it but it probably should be something that actually might need vitamin C.i really think this is a good project ,because people would usually buy orange juice andthink there's vitamin C in it.most of the time when they have colds or just really like it,but sometimes they have something thats not as helpful as a different type of OJ.