(The Cut) – Inside the shiny new brick-and-mortar med spas trying to capitalize on receding hairlines.

Somewhere in the depths of Reddit, Daniel got interested in PRP, the shorthand for platelet-rich plasma therapy, in which the platelets from a person’s own centrifuged blood cells are re-injected into the scalp in an effort to stimulate hair growth. Earlier this year, when Daniel’s acupuncture clinic emailed with a discount code for PRP treatments at a new hair-focused med spa in Noho called Great Many, he immediately booked an appointment. The med spa is one of several balding-oriented start-ups funded — and in some cases founded — by venture-capital firms looking for a piece of the $3 billion that people in North America spend annually on staying hairy, twice the annual expenditure on erectile-dysfunction pills. (Read More)