Which is the recommended concentration of Tween 80 to be used to properly mix medium and essential oil?

I am screening some essential oils such as Manuka, Myrtus, Melissa, Eugenol, TTO ecc.. at concentrations ranging from 0% to 8%. I am using Tween 80 to enhance the solubilization of the oil in the...

05 May 2016 1,041 5 View