Rodan + Fields Lash Boost is the brand's best-selling nightly conditioning serum for the appearance of longer, fuller, darker-looking lashes. Brush one thin stroke along the upper lash line before bed. In Rodan + Fields' 8-week U.S. clinical and consumer study, 90% of participants noticed the appearance of fuller-looking lashes, 85% longer-looking, and 63% darker-looking. Many people see a difference in as little as four weeks. Choose your packaging at checkout. Every tube is authentic, brand new and factory sealed. The only difference is the outer box: Current packaging — Rodan + Fields' latest carton and tube design. 3 available. Original packaging — the earlier carton and tube design, before the redesign. Same 5 mL, same serum, same directions. Priced lower simply because the box is older. 10 available. Brand new, never opened, factory sealed 100% authentic Rodan + Fields 5 mL / 0.17 fl. oz. U.S. — roughly an 8 to 12 week supply Ships from California, usually within 1 business day How to use Remove makeup and cleanse. Eyelids and lashes must be completely clean and dry. Apply along the upper lash line only. Dip the brush once per eye and wipe off any excess before applying. Gently wipe excess serum from eyelids or lashes. Do not wash your face afterward. Wait about 90 seconds to dry before sleeping or applying anything else near the eyes. Use nightly. Once you reach the look you want, keep using it to maintain lash condition. Good to know Upper lash line only — not for lower lashes. Dermatologist developed. Suitable for adult users. If you are pregnant, nursing, or under a doctor's care for an eye condition, check with your physician before use. Results vary with age, skin type, health history, and other products used. Limited quantity. Studio DV is an independent reseller and is not affiliated with or endorsed by Rodan + Fields. Product is sold new, sealed and unused.