What is the Difference Between Serums, Moisturisers & Oils?

A common question I get asked by members is the difference between a serum, a moisturiser, and an oil. To be honest, I cannot give an absolute definition of of each, because these are just fancy word terms used by companies to describe their product range.

In general terms, there is a noticeable between the three. Lets start with a serum. Click Here