No, it´s a hair thickening lotion.
Very marginal thickening effect, and the hair becomes too dry after the use. But I think it depends on the type of hair you have. I guess in curly/slightly curl kind of hair it could work better. Word is, thckening agents don´t usually work wonders on my hair, as I have it straight.
It does somehow the trick if I apply some wax after it to give some brightness, as toppek tends to make it look dry and dead.
For me it´s not worth the money, specially compared to regular concealers such as toppik fibers or nanogen, which totally hide my thinning spot in the crown.