Oil based serums are lipophilic, which means they can penetrate deep into the skin, trapping water and other moisturizing goodness in. At the same time it keeps toxins and other bad stuff out. No matter your skin type, different kinds of oils can help keep your skin remain healthy, hydrated, and acne-free. Make sure your skin is a bit damp when you apply the oil serums. Only a few drops are needed. The oil based serums will spread itself. Don’t forget your neck and décolleté . Oil based serums protect your skin barrier and keeps it hydrated, healthy with a beautiful glow.