Ds Spectral Eyelash Revitalizing Serum 2.4MlEnhance the appearance of longer, fuller, and healthier looking lashes with DS Spectral Eyelash Revitalizing Serum 2. 4ml an advanced ophthalmologist developed lash treatment designed to strengthen, condition, and improve lash density from root to tip. Powered by a cutting edge multi peptide complex and nanosome delivery system, this high performance serum works directly along the lash line to nourish follicles, support natural lash growth conditions,