What: Lest it sound like an overdose of whacked-out treatments, we should make it clear that these four therapies are meant to go together - and none is suitable for the sceptic. Colour therapy is administered via a small, $100,000 German console with digital readouts which is stored in an aluminium briefcase. The box is connected to a belt-like pad which is laid across your stomach. You don't see the colours; they're 'transmitted' to the belt, from which your body picks up the 'vibrations' of the colours, which apparently facilitates 'communication' between your cells, allowing them to function more efficiently. Urine autotherapy uses more hi-tech machinery to analyse your urine (you deposit a small sample in a beaker); via a sensor dipped in the beaker, it transmits the 'vibrations' it picks up back to your body through little plastic discs, which are wired to the machine and which you hold in the palms of your hands. This is supposed to be particularly effective in treating allergies, the 'signals' of which are present in the urine. The machinery 'captures' the relevant signal and by sending it back to the body helps it to diminish allergic reactions. Laser acupuncture is acupuncture using a laser instead of needles. And hydrotherapy is the cleansing of the blood and lymphatic systems using the elegantly simple process of placing hot and cold towels on the body. Why: Treatments can be administered to soothe specific ailments, from allergies to digestive problems, or to increase your general sense of well-being. They are usually prescribed in batches, so to see results you're going to have to make more than one visit. Where: Optimum Health Centre, 2/F, Prosperous Commercial Building, 54 Jardine's Bazaar, Causeway Bay (tel: 2577-3798). Who: Dr Alexander Yuan is a chiropractor who also specialises in naturopathic, homeopathic and traditional Chinese medicine. He studied at the Canadian College of Naturopathic Medicine and established the Optimum Health Centre in 1988. The result: None of the treatments is uncomfortable - in fact, apart from the warm and cold towels applied as part of the hydrotherapy, it's impossible to feel anything. The therapist encourages you to fall asleep, which is easy to do with a warm towel steaming on your chest. The only difficult part is when the warm towel is removed and replaced by an ice-cold one (which is said to get the blood and lymphatic systems working overtime). The towel soon warms to your body temperature, however, so you can resume your nap. The bottom line: The procedure takes an hour and costs $300. Before you begin, however, you're required to have a consultation with Dr Yuan, which costs from $300 to $800. The verdict: It's difficult to assess the benefits after a single session. If it's simply relaxation you're after, then the Optimimum Health Centre probably isn't the place for you. But if you have a niggling condition that your regular doctor can't seem to treat, it's probably worth a try.