The revolutionary Rimmel Wonder’Care Lash Serum seeks to promote fuller, longer lashes in just four weeks. Infused with a nutrient-rich complex, the formula employs a blend of vitamins, proteins and peptides to help support the growth of healthy-looking lashes. Bamboo extract, biotin and castor oil are believed to strengthen hairs against breakage and fall-out. Equipped with a super-slim brush, the serum lends itself to precise, mess-free application. This eyelash growth serum offers a lifted effect, perfectly prepping hairs for a coat of mascara.