Cannabidiol (CBD) oils are equally or less effective at inhibiting the growth of certain cancer cells compared to pure CBD, according to Penn State College of Medicine researchers. The results of their recent study indicate that future research into the clinical applications of cannabinoids should include an analysis of whether the pure cannabinoid compound or intact plant material is more effective at achieving the therapeutic effect.
The researchers evaluated whether CBD oils were better than pure CBD at inhibiting the growth of different cancer cell lines. They studied brain, skin and colorectal cancers — using two cell lines for each cancer type — and found that pure CBD was able to reduce cell viability in three of the six cell lines tested and that the effect was cell line specific and not specific to select cancers. None of the CBD oils tested were able to reduce viability to a greater