Looking at photos of Taiwanese Zhang Tingxuan, it is hard to believe she is a 41-year-old mother of two.

Zhang shot to Internet stardom almost overnight, after photos of the youthful-looking housewife with an enviable physique began circulating on the Internet.

Zhang has been compared to 44-year-old Japanese model and homemaker, Mizutani Masako, who is also known for her age-defying good looks.

Mizutani reportedly spends at least five hours on her beauty regimen every day and claims taking care of her looks is a "woman's duty".

Zhang, who looks like she could be in her 20s, credits her beauty and figure to daily exercise and a healthy fruit-laden diet.

Dubbed the "gym goddess", Zhang is shown working out at the gym in some of the photos, where she flaunts her trim body and flawless abs in a midriff-baring top.

Taiwanese media that have interviewed Zhang attest to her natural beauty.

However, some netizens have expressed their doubts, claiming her photos may have been digitally retouched.

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