Table 1. Classification of extract toxicity

LC50 (μg/mL)	Description
LC50 < 100	Strong cytotoxic activity
100 < LC50 < 500	Moderate cytotoxic activity
500 < LC50 < 1,000	Low cytotoxic activity
LC50 > 1,000	Non-toxic

Data from Nguta et al. (2012).
LC₅₀: lethal concentration 50.