13 07 skin acne laser treatment blue u lightDescription: BLU-U uses a blue light to get to the core of acne, to kill the bacteria that causes breakouts.

How it's done: You sit in front of a blue screen, which emits wavelengths of light that produce free radicals, that kill the bacteria that causes acne under your skin. The treatment is 100 per cent natural and non-invasive. Many dermatologists and doctors will recommend two 15-minute sessions a week for four weeks.

Complications: No side-effects.

Recovery: Redness for a day or two.

Cost: $350 and up/session.