Our Biolube V Queen Intimate Moisturizing and Firming Serum is step 3 of the Skintimate routine. Using the dropper, place at least 4 drops of the serum on your fingers and apply the serum to the entire vulvovaginal area (external and internal labia, folds, clitoris and vagina), to provide hydration, elasticity, firmness and lubrication. The serum, like all formulations, maintains the pH of the vulvovaginal area, protects and prevents the growth of microorganisms that cause infections.