Fig. 2

Visual appearance of Echinophora platyloba essential oil nanoemulsions; Left: Nanoemulsion formulated with 6 v/v% Tween 80, 1 v/v% Span, and 2 v/v% essential oil. Right: Nanoemulsion prepared without the aforementioned surfactants. Both images depict the appearance of the nanoemulsions two months after production.