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As the legal use of marijuana and other cannabis products grow, consumers become more curious about what it is and how it works. In the cannabis and hemp plant there are two most abundant cannabinoids – CBD (cannabidiol) and THC (tetrahydrocannabinol). 

CBD can be extracted from hemp or marijuana and legally must contain less than 0.2% THC. CBD can be sold in all forms, such as oil, edibles, topical and more. Whereas THC is the chemical responsible for marijuanas psychological effects, the ‘high’ sensation. 

Both compounds interact with the bodies endocannabinoid system but have very different effects due to the differences in their chemical makeup. 

How was THC Discovered?

THC was first discovered in the 60s. A Bulgrian-born chemist named Rafael Mechoulam wanted to understand more about what THC really is. He became the first ever scientist to successfully separate the THC compound, pioneering the identification of the structure, psychophysiological effects, and synthesis of THC.

This began the journey towards understanding the potential benefits people can receive from the cannabis plant for their health and wellness. 

How Does THC Affect the Brain and Body?

Unlike CBD, THC is a psychoactive compound and is a controlled substance in the UK. However, we believe in order to understand the benefits of CBD, we must compare it to other compounds found in the cannabis plant such as THC. 

The reason THC affects your brain more than CBD comes down to the shape of the cannabinoid. It’s specific structure binds to neurotransmitters which is the spaces that carry communication between your neurons. 

According to the National Cancer Institute, marijuana has been used for its medicinal properties for more than 3000 years. In Central Asia individuals were known to use it for anesthesia. For example, in around 2727 BC, Emperor Sheng Neng of China was known to use a cannabis-based tea to help with a variety of health ailments such as poor memory

Does CBD contain THC?

In the UK, all CBD products must contain less than 0.2% THC. CBD has its own unique properties and is non toxic and non-psychoactive. Therefore, unlike THC, it does not cause psychoactive effects.

At drops of heal we produce full spectrum, broad spectrum and THC-free products to ensure there is always something for everyone. We all have different goals when it comes to CBD so here is a little breakdown of the three types of CBD:

  1. Full Spectrum. This means the entire plant cannabinoid profile is included in the final product, including CBD, CBG,CBDa and less than 0.2% THC. Full Spectrum CBD is often associated with the entourage effect. Shop our CBD extra virgin olive oil to experience the benefits of full spectrum CBD.
  2. Broad Spectrum: This means the THC has been removed but remaining cannabinoids are present, including CBD, CBG,CBDa, CBN and more. Shop our CBD Multivitamin and Turmeric Honey to experience the benefits of broad spectrum CBD.
  3. CBD Isolate: This means the product only contains CBD cannabinoid and nothing else. Shop our Joint Relief Cream and Muscle Rub Gel to experience the benefits of our CBD isolate.

Want to learn more about CBD? Please visit our FAQ page or email us at

Ready to see what CBD Oil can do for you? Visit our range here.


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