An analysis of nine Diamond E-liquids has revealed the presence of two potentially dangerous substances.

Four of the liquids contained the synthetic cannabinoid, 5F-ADB. One contained the widely-abused cough mixture ingredient, DXM.

5F-ADB has been implicated in a number of overdoses involving the use of ‘spice’ – a generic term for former legal highs designed to mimic the effects of cannabis.

The substance has been known to cause anxiety, tachycardia and psychosis.

The Virginia Commonwealth University study was lead by Michelle Peace, Ph.D., associate professor in the Department of Forensic Science, who said:

“CBD is not supposed to make you high, but it has purported medical benefits.

“So when this person said they vaped this product and had a really awful high, we thought, ‘Wow, there is definitely something in there that shouldn’t be’.

“[This study] is a real call to action. Anybody involved in public health or public safety needs to be aware of what’s potentially in these products.”

In August, at least one bottle of Diamond CBD additive was found to contain deadly opiate Fentanyl following a seizure by the Mississippi Bureau of Narcotics.

The company issued Vapouround with a statement in response the story:

“Let us emphatically state that Diamond CBD does not put illegal substances in our products, nor do they contain synthetics of any kind. All of our products go through a rigorous testing process in multiple third-party laboratories. In fact, all of those tests are available online for you to see.”