Lambdapil Lotion uses a specially designed formula with ingredients that help strengthen hair resilience and increase hair thickness, As a lightweight leave-in lotion, it won't leave hair feeling greasy or sticky, and the special dropper gives a precise, easy drop-by-drop application every time, | ISDIN Lambdapil Hair Density Lotion Leave-on Lotion Boosts Hair Thickness, 4. 2 fl. oz | Dermstore