Intrigued by the idea of facial masks, but overwhelmed by the choices on offer? Here's how to find one that suits your skin type

As far back as 1500 BC, humans were smearing mud on their faces to enhance their skin. Since then, women have used all kinds of natural ingredients as facial 'fast fixes', but today there are loads of pre-made specialist masks on the market that take the guesswork out of making your own.

According to a leading Hollywood facialist, Aida Thibiant, the reason masks are so effective is that, 'ingredients are more concentrated than those in lotions or cleansers, so they produce more noticeable benefits.' This means that they shouldn't really be used more than once a week, which is the ideal. Think of masks like exercise - you won't get the benefits if you only use them every few months. If you can't manage a mask session that often, though, don't fret. The change of seasons at the end of summer (when skin is often thirsty after sun exposure) and at the end of winter (when skin is flat and dingy) are the two prime times to make an effort. Finish off by using a warm, wet flannel to remove the mask and it will act as a gentle exfoliant, leaving skin instantly brighter and clearer-looking.

You'll get the best results if you choose a mask that targets your specific skin type and addresses any problems you have. If your skin is dry, for example, a moisturising mask can offer concentrated help, delivering nourishment to parched cells. Most of these masks have a cream or gel base that acts as a barrier so that natural moisture stays in. Masks for dry skin can also be removed with a wet washcloth or tissued off so that some of the moisture stays behind, quenching skin. Where not specified, products are available nationwide in major department stores and chemists.

Oily skin responds well to clay- or mud-based masks. The clay hardens in 10-20 minutes, soaking up impurities and leaving skin feeling soft and smooth. When the mask is removed, surface dirt, oil and dead skin cells adhere to the clay and are rinsed away with the mask. If you have dry skin, steer clear of these types of masks as they'll be too harsh on your face.

Proceed with caution if you have sensitive skin. If it flares up easily, a mask may aggravate it, so try applying a small amount of the mask on an area behind your ear and watch for any adverse reactions during the next day. If you skin stays clear, give the mask a go, but remove it immediately if you experience any burning or stinging. There are masks that are specifically designed to soothe troubled skin. Other masks, meanwhile, are versatile enough to be used on all skin types.

Finally, how do you get the best effects from whichever one you choose?

• Cleanse first: Otherwise it's the equivalent of putting polish on a dirty floor.

• Lay it on thick: Masks work best when coverage is generous.

• Put your feet up: You'll redirect blood from your lower body to your head, bringing oxygen to the face and enhancing the mask's action.

• Stop if irritation occurs: If you experience patchiness, breakouts or redness (other than a healthy glow) after using a mask, discontinue use.

• Moisturise immediately: With dead skin cells removed and pore openings unclogged, your moisturiser will penetrate deeper for maximum results.