Rodan + Fields ENHANCEMENTS Lash Boost (5mL/0.17 US fl.oz.) Advanced Formula for Longer and Thicker Lashes - Rodan and Fields Lash Boost Eyelash Growth Serum & Eyelash Enhancer was specially created to strengthen, magnify, prime and lengthen your natural lashes and brows. Clinically Proven - Our formula has been proven to help boost thickness and length of eyelashes with only 2 weeks of daily use. Over 6 weeks of daily use saw a 55% increase of natural eyelashes. Clinically Proven - Our formula has been proven to help boost thickness and length of eyelashes with only 2 weeks of daily use. Over 6 weeks of daily use saw a 55% increase of natural eyelashes. Easy to Use - With the applicator tip, apply serum to the root area of the upper eyelashes or brows, similar to eyeliner application. The serum works great as a primer as well. Use daily and let the eyelash serum work its magic. Money Back Guarantee - Our team goes through rigorous testing of our formulas and believe you will love the final product just as much as we do. If you are not satisfied with your Essy Beauty product, we offer a replacement or refund. There is literally no risk for you, so don't hesitate to try our eyelash serum!