Between pressure at work and in the dating field to look young and refreshed, men are increasingly venturing beyond massages, and exploring anti-aging treatments at spas. But the menu of pampering services and exotic ingredients (caviar facial, anyone?) is extensive, and it's hard to know what treatments will deliver results and what's a waste of money. It turns out it's a pretty short list for the worthwhile services. Here are 10 of the most common anti-aging treatments for men, and whether they're worth investing in or not.