What it is: An FDA-cleared serum-cream that delivers microcurrent from your device (sold separately) to your skin.Who it's for: All skin types.What it does: It's formulated with the brand's IonPlex along with other powerful actives to help instantly firm, brighten and hydrate thirsty skin, lock in hydration for up to 48 hours. Though formulated to work with your microcurrent device, it can also be used alone for supple, soft skin and an ultra-hydrated complexion. How to use: Begin with clean, dry skin. Smooth a thin mask-like layer of Silk Crème onto your neck and face, working in sections. Use your favorite NuFACE microcurrent debice for skin firming, tightening and contouring. Finish with your favorite serum, moisturizer and SPF.