Importance of a good smile not to be underestimated, say experts

Investing in preventative products in your twenties is key to maintaining radiant skin right through to old age, it has been suggested.

Beauty boffins at South Africa's Shape magazine singled out Dermalogica's Skin Hydrating Maskas just one of the wonder-workers younger ladies can use to equip them for exposure to the elements and the natural ageing process. Referring to one's twenties as the "glory years", the team warned against complacency as wrinkles begin to form beneath the surface during this era.

"The first signs of ageing occur in the second half of your twenties," they explained.

"You will start to notice it around your eyes and lips, especially if you are a smoker or spend a lot of time in the sun."

As well as daily sun protection, gentle exfoliation and antioxidant-enriched moisturisers, regular facials using Guinot or Decleor products are recommended "to either rehydrate, soothe or purify the skin".

For those entering their thirties, Elizabeth Arden is suggested as a key companion, as well as Clarins' wide selection of cleansing and moisturising lotions and potions.

Elemis is another age-perfect provider of beauty products regularly recommended by experts for youthful-minded men and women alike.