Yes. Nanoxidil, used in Spectral.DNC-N, Spectral.CBD and Spectral.CSF works for both the vertex (scalp) and for the hairline in hair loss and thinning hair.
Does Minoxidil (Rogaine) Work for Frontal Baldness? - YouTube
Minoxidil vs. Nanoxidil (Spectral.DNC-N) As Compared By A Dermatologist - YouTube