Man's face // Man's face - © Adam Gault | Getty Images(© Adam Gault | Getty Images)

NO-SURGERY FAT ZAPPERS

IN OFFICE: Lose pounds with cold lasers

You work out, eat smart and dropped 10 on the SELF diet, but you can't shake that last trouble spot. If you're fit otherwise -- and willing to spend big bucks -- new, noninvasive methods offer a kind of lipo "light."

Exhibit A: Zerona, which uses low-level lasers, applied in multiple sessions, to create a temporary hole in fat cells so what's inside can leak out. But because the fat is broken down as it leaves the cell, it won't up your cholesterol. It's safer than old-school lipo and a lot less painful (as in, not at all), says Jamé Heskett, M.D., of New York City. But overeating may replump fat cells, so you could regain some of the weight over time, Dr. Heskett says.

Cost: Up to $4,275 for 9 sessions

IN OFFICE: Spot-trim with an energy stream

For those hell-bent on sundress-ready arms, Liposonix and its ilk "use ultrasound energy to dissolve small areas of fat," says Paul Jarrod Frank, M.D., a cosmetic dermatologist in NYC.

The technique focuses energy, as a magnifying glass does sunlight, to destroy fat at a pinpoint beneath your skin but above your muscle tissue, so those areas aren't harmed.

It's not zero risk: You may end up with bruising or redness, which can last up to a week. And as with other bulge blasters, the fat can come back in some weird places, like the bra line, neck and armpits.

Cost: Up to $5,000

IN OFFICE: Chill out flab

Uh-huh, you can literally freeze off your fat. Cryolipolysis, such as Zeltiq's CoolSculpting, took its cue from research on frostbite, which shows that fat cells freeze before skin does, the American Society for Aesthetic Plastic Surgery reports.

This FDA-cleared device presses your pooch between two cold panels for up to two hours (in only one session), destroying fat cells. But don't ditch the diet! Once again, you can still gain new weight in other areas.

Cost: $750

FUTURISTIC FIRMERS

IN OFFICE: Get ultra-toned with ultrasound

New allover toners use heat to reshape collagen, firming the skin on the surface, explains Francesca Fusco, M.D., a derm in NYC.

First up: Ultherapy, in which the heat source is ultrasound. FDA-approved for the face, ultrasound firmed up the forehead of 86 percent of women after three months, a study in the Journal of the American Academy of Dermatology finds.

"It looks totally natural," Dr. Frank adds. "And unlike fillers, these treatments do not wear off after a few months and may even last up to three years." (At this price and pain level, they'd better last!)

Cost: Up to $4,500

IN OFFICE: Flatten cellulite with heat waves

If you have lumps you want to even out (join the club), the Apollo TriPollar system might help. A derm wields a wand issuing heat waves from radio-frequency energy that shrink fat cells, contract collagen fibers and stimulate collagen regeneration for up to a year.

You'll need numerous sessions, but there is no recovery time or pain. "I have women in their 20s doing this regularly on their body and face," Dr. Heskett says. "Many are coming in for preventative rather than reparative purposes."

Cost: Up to $3,500 for 10 sessions

AT HOME: Liberate your thighs from lumps

The TriPollar POSE personal device uses technology similar to radio-frequency treatments at your derm's office. Though still not cheap, and less potent than in-office treatments, this gizmo is especially helpful to maintain an in-office cellulite treatment longer.

Persistence is required: You need to use the device two or three times a week for six to eight weeks to see results -- and then continue using it to maintain them. OK, so the treatment won't replace hours of squats, but it does hurt way less.

Cost: $549 for the device