The Ordinary Plant Derived Hemi Squalane Hydrating Face & Hair Oil If your skin is feeling a little dry, or you're looking for a new go-to that will maintain smooth, supple skin, then The Ordinary 100% Plant-Derived Hemi-Squalane is sure to become your new skincare must-have, and will help to prevent loss of hydration and soften even the driest of complexions without overburdening it.