One thing I don’t get to try on my journeys through the world of wellness are men’s spa treatments. So I’ve started deputizing my editor to go try them for me. Recently he visited The Cocoon (#05-22 Ngee Ann City, 391 Orchard Rd., 6734-6626), the flagship Urban Homme Outlet  for an Oxy3 Face Spa ($500 per session). The treatment is a three-step process that uses pure oxygen to rejuvenate the skin.