Hair
18+ · Prescription-only medicines — consult your prescriber.
The hair-loss stack from named GMP manufacturers — finasteride and dutasteride (Cipla, Dr. Reddy's), topical and low-dose oral minoxidil (Glenmark, Intas), and the combination solution.
These are the strongest economic case in the vertical after the melasma creams, because they are taken daily and indefinitely — per-tablet differences compound over years. Minoxidil + Finasteride has no FDA-approved US equivalent at all, so it is an availability story as much as a price one.