Figure 4.
(A) The graph presents the percentage of viable cells and thus toxicity of the three MTS tests performed on human keratinocyte cells (HaCaT), with dose dependent killing up until 16 µg/mL of CBD, from where the toxicity levels out around 50% up to the highest tested concentration of 64 µg/mL of CBD. (B) CBDA and CBD demonstrate very minor hemolytic activity in concentration ranges of up to around 8 × MIC and 4 × MIC, respectively. SDS was used as a positive control lysing 100% of the red blood cells.