Going by these standards, Miranda Kerr, Cheryl Cole, Mila Kunis, Emily Blunt and Agyness Deyn - all on the cusp of turning 30 - are likely to already be panicking about age spots, thinning lips and facial hair.
Having spent their teens trying to look older than they actually are, women finally become happy with their appearance in their early twenties but all that changes very quickly at the young age of 29.
At 29 women become more concerned about trying to look young again, amid fears of wrinkles, sagging boobs, bingo wings and crow’s feet.
They also tend to find their first grey hair. In fact, some 33 percent of women fret about going grey and thinning hair is a major worry for three in 10.
A third of women say a sagging bottom keeps them awake at night, while 29 percent want to avoid a wrinkly cleavage at all costs.
The study shows that other top ageing fears for ladies include facial hair, a middle aged spread and thread veins.
Developing double chins, age spots, wrinkly hands and thinning lips also feature in the catalogue of concerns.
To combat these signs of ageing, the average female reckons she spends up to 12 minutes each day applying the necessary creams and make up, which is the equivalent of 73 hours a year, or three entire days dedicated to the skincare and beauty routine.
While more than one in ten women feel they look older than they are by an average of six years, six in 10 ladies feel younger than their years, and claim good make-up and skin care routines cause this.
Andrew Groom is the Buying Director of Superdrug, the company which conducted the study of 2,000 women.
“It is incredible to think that those who are still in the prime of their life at 29 are already worrying about the effect ageing will have on their face and body,” the Daily Mail quoted Groom as saying.
“That said, it’s really never too early to take care of your skin, and today’s women are lucky that products on our shelves really work.
“A quick skincare routine started at 29 really will combat the signs of ageing and it''s got to be worth the effort,” he added.