In short yes, in a statement made by the MHRA (Medicines and Healthcare products Regulatory Agency) they stated the following:
An MHRA spokesperson said:
We have come to the opinion that products containing cannabidiol (CBD) used for medical purposes are a medicine. Medicinal products must have a product licence (marketing authorisation) before they can be legally sold, supplied or advertised in the UK, unless exempt. Licensed medicinal products have to meet safety, quality and efficacy standards to protect public health.
If you use CBD and if you have any questions, speak to your GP or other healthcare professional.
We have written to UK CBD stockists and manufacturers to inform them of our view. We can provide regulatory guidance to any company who may wish to apply for a licence.
After issuing in October its initial opinion on the medicinal value of CBD products, the MHRA allowed businesses until December 31, 2016 to voluntarily remove their current stock of CBD products sold for medicinal purposes until early 201 when the MHRa allowed the sale of CBD oil UK wide.
Cannabis oil was itself illegal to possess, supply or use. Since the above statement the law has now changed to recognise CBD as a medicine. This is down to scientific studies into its use. In a nutshell CBD oil is now legal in the UK.