Cannabis Health News
In a new study of the CBD content in products on sale in the UK, the majority were found to contain significantly lower concentrations than what was advertised.
Researchers analysed the actual concentrations of CBD in a sample of products on sale in the UK and compared these with the levels advertised.
The majority of products contained significantly lower concentrations of CBD than stated on the label, regardless of product type with few containing ‘within 10%’ of the advertised amount.
In what is thought to be among one of the largest sample sizes to date, researchers analysed the CBD concentration in 63 products sold by 40 different brands in the UK, these included 13 tinctures, 29 oils, 10 e-liquids and 11 drinks. Most were purchased through major UK health food shops and specialist online CBD retailers to give a more representative sample of the products being used by consumers.
For each tincture and e-liquid, where possible, an oil from the same brand containing similar advertised levels of CBD was purchased to allow for comparison, while ‘potentially eliminating’ manufacturing standards as a ‘confounding factor’.
CBD levels were analysed in a blind fashion, using high performance liquid chromatography (HPLC) to measure concentrations in aqueous tinctures, oils and e-liquids and gas chromatograhy-mass spectrometry (GC-MS) in drinks.
The results show that the measured concentrations fell below those advertised in all product types, although oils deviated the least.
Only 8% products had concentrations within 10% of the advertised strength. All others were measured at more than 10% below the advertised concentrations, except for a single oil that was found to contain 50% more CBD than stated.
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UK study finds most products contain less CBD than advertised
