I think the key to under eye concealing is more in camoflauging rather than covering them up. This concealer has Silica and other light reflecting minerals to help optically diffuse those dreaded under circles.
If you have golden or yellow tones Salmon will be the concealer for you as this will neutralize the bluish green under circles the best.
A full size is a 2 gram container, the same container that the deluxe lip samples come in, and a sample is a few drops in a pod. Not much but enough to test it out a few times.
Ingredients: Avocado Butter, Silica, Zinc Oxide, Titanium Dioxide, Iron Oxides and Allantoin.