Derma Geek Nourishing Facial Night Cream w/ 3.5% Niacinamide - 3 pack x 1.7 oz Visible Results, Clinically Tested. Facial Night Cream with 3.5% Niacinamide - a dermatologist recommended ingredient - is a rich formula that nourishes skin overnight with deep hydration for visibly smoother and supple skin. Hydrates for 24 hours. New, sealed. All orders shipped quickly.