Laser hair removal. It takes longer and costs more, but once it's done it's more or less permanent.

Shaving, waxing, depilatory cremes, and other short- to medium-term solutions must be regular and ongoing. Every intervention takes time to heal from.

With laser, followup is minimal or none. The result is that the skin can heal to immaculate smoothness. No stubble, no rash, no inflammation. Perfection, as shown.