Hemp oil is a collective name for all types of oil from the hemp plant. There are different types of hemp oil:
Hemp oil which is pressed from the seeds of the hemp plant. This oil is better known as hemp seed oil. It contains a perfect ratio of essential omega 3 and 6 fatty acids.
Hemp oil which is pressed from the hemp leaves, the most famous hemp oil made from leaves, is CBD oil.
CBD or Cannababidiol belongs to cannabinoids. There are dozens of types of cannabinoids, of which CBD is best known alongside THC. CBD, unlike THC, has no hallucinatory effect. It is not addictive and has no side effects.
CBD is in contrast to THC, a legal substance available everywhere in Europe as a dietary supplement. CBD products contain less than 0.2% THC. You therefore run no risk that the use of CBD will affect your perception.