Vitamin is any of a group of organic substances essential in small quantities to normal metabolism, found in minute amounts in natural foodstuffs or sometimes produced synthetically: deficiencies of vitamins produce specific disorders. Hormone is a synthetic substance used in medicine to act like such a compound when introduced into the body. Any of various internally secreted compounds, as insulin or thyroxine, formed in endocrine glands, that affect the functions of specifically receptive organs or tissues when transported to them by the body fluids. As far as supplements go the easiest way to see the differences is that vitamins aid your body with what it needs. Whereas a hormone supplement will be replacing and/or adding to you body to improve where your body's regular production will not allow. Vitamins are: A (Retinol) B1 (Thiamin) C (Ascorbic acid) D (Calciferol) B2 (Riboflavin) E (Tocopherol) B12 (Cobalamine) K (Phyllochinone) B5 (Pantothenic acid) B7 (Biotin) B6 (Pyridoxine) B3 (Niacin) B9 (Folic acid) Hormone supplaments are really too long to list but there are a lot of them on every bodybuilding store on the internet. Some common ones that are use are Methyl 1-D and 6-0x0. Hope that helps

Vitamins help you better age. Hormones are what rage.

Ok, I'll bite. Here's the answer you crave: You can't make a vitamin. (edited: I fixed this once already, I thought...)

Depends which vitamin you're talking about.